# A020726 (b-file synthesized from sequence entry)
0 1
1 27
2 493
3 7599
4 106645
5 1411431
6 17955757
7 222093423
8 2690508229
9 32080473975
10 377794514461
11 4405195463487
12 50953884924853
13 585473143132359
14 6690087028209805
15 76090252032830991
16 861988540696279717