# A136045 (b-file synthesized from sequence entry)
0 1
1 4
2 42
3 660
4 12810
5 281736
6 6727644
7 170316432
8 4504487130
9 123255492360
10 3465702008340
11 99645553785960
12 2918768920720380
13 86852063374902000
14 2619552500788984200
15 79939673971478231760