# A013443 (b-file synthesized from sequence entry)
0 4
1 -8
2 992
3 3456
4 2799872
5 106544128
6 37168683008
7 4255728041984
8 1543239875821568
9 355403465489907712
10 155864209273777553408
11 58585654628727325196288
12 32351390426329866422976512