# A051048 (b-file synthesized from sequence entry)
1 2
2 5
3 31
4 449
5 6271
6 87361
7 1216799
8 16947841
9 236052991
10 3287794049
11 45793063711
12 637815097921
13 8883618307199
14 123732841202881
15 1723376158533151
16 24003533378261249
17 334326091137124351