# A012444 (b-file synthesized from sequence entry)
0 1
1 2
2 12
3 280
4 7952
5 532768
6 30306496
7 4657640832
8 327222722816
9 131738463674880
10 2341955285781504
11 10584761954697844736
12 -1750594656814587244544
13 2213182839332047713673216