// Cells and their vertices.
#0={0}
#1={1,3,6,10,15,21,35}
#2={2,5,9,14,20,27,30}
#3={4,7,8,11,12,13,16,17,18,19,22,23,24,25,26,28,29,31,32,33,34}

// Induced graph on cells.
#0:.
#1:->#0.
#2:->#0.
#3:->#1,#2.

// Individual cells.
// cell #0:
0[0]: {}

// cell #1:
0[1]: {7} --> 1
1[3]: {6} --> 0,2
2[6]: {5} --> 1,3
3[10]: {4} --> 2,4
4[15]: {3} --> 3,5
5[21]: {2} --> 4,6
6[35]: {1} --> 5

// cell #2:
0[2]: {1} --> 1
1[5]: {2} --> 0,2
2[9]: {3} --> 1,3
3[14]: {4} --> 2,4
4[20]: {5} --> 3,5
5[27]: {6} --> 4,6
6[30]: {7} --> 5

// cell #3:
0[4]: {1,7} --> 1,2
1[7]: {1,6} --> 0,3,4
2[8]: {2,7} --> 0,4,5
3[11]: {1,5} --> 1,6,7
4[12]: {2,6} --> 1,2,7,8
5[13]: {3,7} --> 2,8,9
6[16]: {1,4} --> 3,10,11
7[17]: {2,5} --> 3,4,11,12
8[18]: {3,6} --> 4,5,12,13
9[19]: {4,7} --> 5,13,14
10[22]: {1,3} --> 6,19,20
11[23]: {2,4} --> 6,7,18,19
12[24]: {3,5} --> 7,8,17,18
13[25]: {4,6} --> 8,9,16,17
14[26]: {5,7} --> 9,15,16
15[28]: {6,7} --> 14
16[29]: {5,6} --> 13,14
17[31]: {4,5} --> 12,13
18[32]: {3,4} --> 11,12
19[33]: {2,3} --> 10,11
20[34]: {1,2} --> 10