# A266093 (b-file synthesized from sequence entry)
0 1
1 4
2 36
3 372
4 4372
5 57396
6 828020
7 12962164
8 218098356
9 3915198836
10 74543140404
11 1497946963316
12 31640513815604
13 700059941981812
14 16175777760450868
15 389308305885650804
16 9736819496150623284
17 252548355023773152372