# A210310 (b-file synthesized from sequence entry)
0 1
1 4
2 496
3 869824
4 21467623936
5 7881126729140224
6 44075357435370071351296
7 3802951448073847111253622882304
8 5104235473390420925196874786915866443776
9 107176786696765659714361271737312271270497663320064