# A147484 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 3
7 8
8 23
9 63
10 191
11 685
12 3493
13 20460
14 144341
15 1163965
16 10657560
17 110643922
18 1393408349
19 20934516013
20 373325933993
21 7839237276478
22 192639728351279
23 5496880042565859