# A354263 (b-file synthesized from sequence entry)
0 1
1 3
2 21
3 222
4 3132
5 55242
6 1169262
7 28873800
8 814870584
9 25871762016
10 912684973968
11 35416732159872
12 1499286521185776
13 68757945743286576
14 3395829155786528976
15 179693346163010491008
16 10142543588881013369856
17 608262031900883147262336