# A145946 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 3
5 13
6 41
7 227
8 1869
9 21295
10 308993
11 6084845
12 167200773
13 6380227531
14 331792369009
15 23397509975499
16 2257639231682789
17 299410947515153649
18 54437613856802551915
19 13525155332080202787543
20 4594219425445605883554215