# A226976 (b-file synthesized from sequence entry)
0 1
1 9
2 28
3 133
4 539
5 2322
6 9773
7 41501
8 175636
9 744273
10 3152359
11 13354306
12 56568617
13 239630337
14 1015087436
15 4299984173
16 18215017507
17 77160064914
18 326855259829
19 1384581132277
20 5865179743556
21 24845300179929
22 105246380344463
23 445830821750018
24 1888569667033489