# A158262 (b-file synthesized from sequence entry)
1 1
2 4
3 56
4 3480
5 912640
6 969917088
7 4106848523904
8 68973668731925376
9 4597014244761562326272
10 1218175506582318206655794688
11 1285897546575275148015361075150848