# A095209 (b-file synthesized from sequence entry)
0 1
1 4
2 54
3 3750
4 504210
5 372027810
6 144949074270
7 209481995953230
8 164735296593157290
9 401824316553919068810
10 2721846739094340967339230
11 5095936579799734140259818030
12 48850362989361131638352534231610