# A203156 (b-file synthesized from sequence entry)
1 1
2 13
3 244
4 6676
5 254736
6 13000464
7 857431296
8 71077637376
9 7239445632000
10 889141110912000
11 129629670893568000
12 22136856913815552000
13 4377599743151480832000
14 992559996665635184640000
15 255805371399126806691840000