# A011810 (b-file synthesized from sequence entry)
0 0
1 0
2 1
3 21
4 330
5 4931
6 76064
7 1257345
8 22707559
9 452800399
10 10023029299
11 246756095614
12 6752175162108
13 204875755372586
14 6868905893537535
15 253432530143048034
16 10246233216680784186
17 452038162651568624259