# A089459 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 2
4 6
5 30
6 221
7 2201
8 27769
9 424757
10 7639190
11 157969167
12 3692733181
13 96293669499
14 2771232779481
15 87247362424120
16 2982901522141490
17 110057420712635526
18 4358745145279372293
19 184433423940319376323