# A098722 (b-file synthesized from sequence entry)
3 1
4 1
5 10
6 400
7 42875
8 9834496
9 4182119424
10 2985984000000
11 3329565857578125
12 5487587353600000000
13 12802485663117464444416
14 40833239547181264169598976
15 173031575921620011303271484375
16 951166013805414055936000000000000