# A124463 (b-file synthesized from sequence entry)
0 1
1 4
2 13
3 44
4 162
5 637
6 2622
7 11188
8 49293
9 223768
10 1044661
11 5006126
12 24580704
13 123464593
14 633467893
15 3315948760
16 17690431736
17 96101620364
18 531196784996
19 2985589206506
20 17053375055317
21 98942675518256
22 582858713958087