# A202989 (b-file synthesized from sequence entry)
0 1
1 4
2 100
3 21952
4 45212176
5 864866612224
6 151334226289000000
7 240066313618039143841792
8 3437872835498096514323500400896
9 443629285048033016198674962874808664064
10 515464807019389919369209932597753906250000000000