# A367776 (b-file synthesized from sequence entry)
0 0
1 6
2 240
3 12600
4 846720
5 69854400
6 6849722880
7 779155977600
8 100919250432000
9 14668613050291200
10 2364758225077248000
11 418798681661180620800
12 80831074222717378560000
13 16887920864389166592000000
14 3797443866983262444748800000
15 914438045469094536918528000000