# A145020 (b-file synthesized from sequence entry)
1 1
2 196
3 23716
4 2458624
5 239754256
6 22776846400
7 2139058352704
8 199857257119744
9 18630079167234304
10 1734834007938712576
11 161472109634377851904
12 15026063825688651366400