# A203317 (b-file synthesized from sequence entry)
1 1
2 2
3 8
4 256
5 10240
6 3440640
7 1233125376
8 4058744094720
9 286551971651911680
10 13351029463205868994560
11 18128348229848045861669437440
12 80945830355202461675325011924090880
13 223346912509970707926726595810215906508800