# A181444 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 60
4 2480
5 242296
6 53763904
7 28363717952
8 41396018951936
9 215328934357721024
10 4740698193856769942528
11 430771050114778618253200384
12 151994706469390446336698323709952