# A273629 (b-file synthesized from sequence entry)
0 1
1 72
2 18360
3 5920200
4 2118223800
5 803927196072
6 316938365223480
7 128313095514575400
8 52976845635264939960
9 22204947580777261872000
10 9418997650746914743158360
11 4034374193416822645489549632
12 1741969558937890710303111545400