# A028226 (b-file synthesized from sequence entry)
0 1
1 38
2 909
3 17518
4 297437
5 4648350
6 68550973
7 968960366
8 13264544733
9 177146894782
10 2320188183677
11 29920806791694
12 381057655784989
13 4803870896957534
14 60058812824159421
15 745739268125744302