# A091364 (b-file synthesized from sequence entry)
0 0
1 1
2 32
3 486
4 6144
5 75000
6 933120
7 12101040
8 165150720
9 2380855680
10 36288000000
11 584421868800
12 9932577177600
13 177849941068800
14 3349041234739200
15 66201014880000000
16 1371195958099968000
17 29707369682006016000