# A174489 (b-file synthesized from sequence entry)
0 1
1 4
2 56
3 1672
4 85904
5 6741544
6 749040472
7 111786940612
8 21558649749088
9 5215883627856592
10 1546429233541304456
11 551278120123210461436
12 232603216443181020788944
13 114634034948809175011787176