# A119695 (b-file synthesized from sequence entry)
0 0
1 2
2 48
3 1800
4 47040
5 1323000
6 35126784
7 937872936
8 24735110400
9 651019271760
10 17067389768000
11 446585320669488
12 11663935674273792
13 304250554223980000
14 7927831278607968000
15 206402082984558900000
16 5369988005412124953600