# A007082 (b-file synthesized from sequence entry)
1 2
2 264
3 1015440
4 90449251200
5 169107043478365440
6 6267416821165079203599360
7 4435711276305905572695127676467200
8 58393052751308545653929138771580386824519680
9 14021772793551297695593332913856884153315254190271692800
10 60498832138791357698014788383803842810832836262245623803123983974400