Full list of non-zero Kazhdan-Lusztig-Vogan polynomials:

 0:  0: 1

 1:  1: 1

 2:  0: 1
     2: 1

 3:  0: 1
     3: 1

 4:  0: 1
     4: 1

 5:  1: 1
     5: 1

 6:  0: 1
     2: 1
     4: 1
     6: 1

 7:  0: 1
     3: 1
     4: 1
     7: 1

 8:  4: 1
     8: 1

 9:  5: 1
     9: 1

10:  0: 2
     2: 1
     3: 1
     4: 1
    10: 1

11:  1: 1
     5: 1
    11: 1

12:  4: 1
     6: 1
     8: 1
    12: 1

13:  4: 1
     7: 1
     8: 1
    13: 1

14:  0: 1
     2: 1
     4: 1
     6: 1
    10: 1
    14: 1

15:  0: 1
     3: 1
     4: 1
     7: 1
    10: 1
    15: 1

16:  8: 1
    16: 1

17:  9: 1
    17: 1

18:  4: 1
     8: 1
    10: 1
    18: 1

19:  5: 1
     9: 1
    11: 1
    19: 1

20:  8: 1
    12: 1
    16: 1
    20: 1

21:  8: 1
    13: 1
    16: 1
    21: 1

22:  4: 1
     6: 1
     8: 1
    10: 1
    12: 1
    14: 1
    18: 1
    22: 1

23:  4: 1
     7: 1
     8: 1
    10: 1
    13: 1
    15: 1
    18: 1
    23: 1

24: 16: 1
    17: 1
    24: 1

25:  8: 1
    16: 1
    18: 1
    25: 1

26:  9: 1
    17: 1
    19: 1
    26: 1

27:  0: q
     4: q
    10: 2
    14: 1
    15: 1
    18: 1
    27: 1

28: 11: 1
    19: 1
    28: 1

29:  8: 1
    12: 1
    16: 1
    18: 1
    20: 1
    22: 1
    25: 1
    29: 1

30:  8: 1
    13: 1
    16: 1
    18: 1
    21: 1
    23: 1
    25: 1
    30: 1

31: 10: 1
    14: 1
    18: 1
    22: 1
    27: 1
    31: 1

32: 10: 1
    15: 1
    18: 1
    23: 1
    27: 1
    32: 1

33: 16: 1
    17: 1
    20: 1
    24: 1
    33: 1

34: 16: 1
    17: 1
    21: 1
    24: 1
    34: 1

35: 16: 1
    17: 1
    24: 1
    25: 1
    26: 1
    35: 1

36: 18: 1
    25: 1
    27: 1
    36: 1

37: 19: 1
    26: 1
    28: 1
    37: 1

38: 18: 1
    22: 1
    25: 1
    27: 1
    29: 1
    31: 1
    36: 1
    38: 1

39: 18: 1
    23: 1
    25: 1
    27: 1
    30: 1
    32: 1
    36: 1
    39: 1

40: 16: 1
    17: 1
    20: 1
    24: 1
    25: 1
    26: 1
    29: 1
    33: 1
    35: 1
    40: 1

41: 16: 1
    17: 1
    21: 1
    24: 1
    25: 1
    26: 1
    30: 1
    34: 1
    35: 1
    41: 1

42: 25: 1
    26: 1
    35: 1
    36: 1
    37: 1
    42: 1

43:  9: q
    17: q
    33: 1
    43: 1

44:  9: q
    17: q
    34: 1
    44: 1

45: 10: q
    18: q
    27: 2
    31: 1
    32: 1
    36: 1
    45: 1

46: 28: 1
    37: 1
    46: 1

47: 27: 1
    31: 1
    36: 1
    38: 1
    45: 1
    47: 1

48: 27: 1
    32: 1
    36: 1
    39: 1
    45: 1
    48: 1

49: 36: 1
    37: 1
    42: 1
    45: 1
    46: 1
    49: 1

50: 25: 1
    26: 1
    29: 1
    35: 1
    36: 1
    37: 1
    38: 1
    40: 1
    42: 1
    50: 1

51: 25: 1
    26: 1
    30: 1
    35: 1
    36: 1
    37: 1
    39: 1
    41: 1
    42: 1
    51: 1

52:  9: q
    17: q
    19: q
    26: q
    33: 1
    40: 1
    43: 1
    52: 1

53:  9: q
    17: q
    19: q
    26: q
    34: 1
    41: 1
    44: 1
    53: 1

54:  5: q^2
     9: q^2
    43: 1
    54: 1

55:  5: q^2
     9: q^2
    44: 1
    55: 1

56: 27: q
    36: q
    45: 2
    46: 1
    47: 1
    48: 1
    49: 1
    56: 1

57: 36: 1
    37: 1
    38: 1
    42: 1
    45: 1
    46: 1
    47: 1
    49: 1
    50: 1
    57: 1

58: 36: 1
    37: 1
    39: 1
    42: 1
    45: 1
    46: 1
    48: 1
    49: 1
    51: 1
    58: 1

59: 19: q
    26: q
    28: q
    37: q
    40: 1
    50: 1
    52: 1
    59: 1

60: 19: q
    26: q
    28: q
    37: q
    41: 1
    51: 1
    53: 1
    60: 1

61:  5: q^2
     9: q^2
    11: q^2
    19: q^2
    43: 1
    52: 1
    54: 1
    61: 1

62:  5: q^2
     9: q^2
    11: q^2
    19: q^2
    44: 1
    53: 1
    55: 1
    62: 1

63:  1: q^3
     5: q^3
    54: 1
    63: 1

64:  1: q^3
     5: q^3
    55: 1
    64: 1

65: 45: 1
    46: 1
    47: 1
    49: 1
    56: 1
    57: 1
    65: 1

66: 28: q
    37: q
    46: q
    50: 1
    57: 1
    59: 1
    66: 1

67: 45: 1
    46: 1
    48: 1
    49: 1
    56: 1
    58: 1
    67: 1

68: 11: q^2
    19: q^2
    28: q^2
    52: 1
    59: 1
    61: 1
    68: 1

69: 28: q
    37: q
    46: q
    51: 1
    58: 1
    60: 1
    69: 1

70:  1: q^3
     5: q^3
    11: q^3
    54: 1
    61: 1
    63: 1
    70: 1

71: 11: q^2
    19: q^2
    28: q^2
    53: 1
    60: 1
    62: 1
    71: 1

72:  1: q^4
    63: 1
    72: 1

73:  1: q^3
     5: q^3
    11: q^3
    55: 1
    62: 1
    64: 1
    73: 1

74:  1: q^4
    64: 1
    74: 1

411 nonzero polynomials, and 994 zero polynomials,
 at 1405 Bruhat-comparable pairs.