# A007804 (b-file synthesized from sequence entry)
0 1
1 30
2 1730
3 152340
4 18177750
5 2742927876
6 500848449300
7 107365679361000
8 26431620161451750
9 7348772237141884500
10 2277376143931016207100
11 778374526612873263759000
12 290867891728117751744917500