# A002482 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 2664
4 101142
5 1645056
6 16045056
7 110146176
8 584713404
9 2549741568
10 9515943936
11 31314087864
12 92917622376
13 252775586304
14 638328674304
15 1511740886400
16 3387163161366
17 7228598851584