# A366496 (b-file synthesized from sequence entry)
0 1
1 1
2 6
3 36
4 251
5 1891
6 15007
7 123593
8 1046444
9 9052330
10 79660406
11 710879890
12 6418000050
13 58515227946
14 538008396198
15 4982752630656
16 46442071874398
17 435299781856712
18 4100411743983559
19 38797120485576155
20 368561495153257186
21 3513923237883474314