# A355986 (b-file synthesized from sequence entry)
1 1
2 3
3 8
4 28
5 125
6 731
7 5052
8 40352
9 362917
10 3628935
11 39916936
12 479002360
13 6227021561
14 87178296283
15 1307674373184
16 20922789928484
17 355687428136485
18 6402373706091651
19 121645100409195652
20 2432902008180269688
21 51090942171713074013
22 1124000727777647602015