# A099940 (b-file synthesized from sequence entry)
1 2
2 1
3 1
4 1
5 5
6 1
7 84
8 11
9 184
10 15
11 193248
12 23
13 19056960
14 833
15 33740
16 64035
17 520105017600
18 2473
19 130859579289600
20 203685
21 963513600
22 23748417
23 16397141420298240000
24 645119
25 555804546402631680
26 8527366575