# A215506 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 39
4 387
5 4516
6 59522
7 864981
8 13641761
9 230931591
10 4162594198
11 79412758356
12 1595971048438
13 33662065586127
14 742852904575909
15 17107642358401929
16 410242691108675077
17 10223836926997402818
18 264339609703677876178
19 7079673476173815446742