# A374892 (b-file synthesized from sequence entry)
0 0
1 1
2 12
3 216
4 5600
5 198000
6 9144576
7 533653120
8 38339288064
9 3320915760000
10 340950896000000
11 40905397939101696
12 5666507699182387200
13 897094997540641908736
14 160875919414586880000000
15 32426573960663769600000000
16 7296186062362650316241371136