# A000519 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 5
5 7
6 18
7 43
8 313
9 7525
10 846992
11 324127859
12 403254094631
13 1555631972009429
14 19731915624463099552
15 791773335030637885025287
16 107432353216118868234728540267
17 47049030539260648478475949282317451
18 71364337698829887974206671525372672234854