# A099275 (b-file synthesized from sequence entry)
0 0
1 1
2 17
3 324
4 6137
5 116281
6 2203200
7 41744521
8 790942697
9 14986166724
10 283946225057
11 5379992109361
12 101935903852800
13 1931402181093841
14 36594705536930177
15 693368003020579524
16 13137397351854080777