# A075515 (b-file synthesized from sequence entry)
0 1
1 45
2 1260
3 28350
4 563031
5 10333575
6 179866170
7 3016747800
8 49263275061
9 788796913905
10 12445575859080
11 194186867360850
12 3004103990159091
13 46168557763591035
14 705914973500103990
15 10750288516418083500