# A009663 (b-file synthesized from sequence entry)
0 1
1 4
2 12
3 -128
4 -5232
5 -54848
6 5325504
7 403442176
8 558723328
9 -2994514283520
10 -295655443772416
11 17110494845845504
12 9628494110111469568
13 971219320278689300480
14 -262986198032101769035776