# A121213 (b-file synthesized from sequence entry)
0 0
1 2
2 24
3 218
4 1776
5 13682
6 102024
7 745418
8 5374176
9 38400482
10 272709624
11 1928498618
12 13597146576
13 95668307282
14 672119557224
15 4717043931818
16 33080342678976
17 231867574534082
18 1624598900644824
19 11379821699045018