# A121580 (b-file synthesized from sequence entry)
1 1
2 3
3 11
4 53
5 317
6 2237
7 18077
8 164237
9 1656077
10 18348557
11 221561357
12 2895986957
13 40737113357
14 613623026957
15 9854521894157
16 168083120422157
17 3034505335078157
18 57810369261862157
19 1159018646647078157