# A374858 (b-file synthesized from sequence entry)
0 2
1 3
2 24
3 240
4 4200
5 110880
6 4572288
7 288812160
8 28141344000
9 4231979136000
10 986721354178560
11 357978242151129600
12 202881784891968000000
13 180248848162914585600000
14 251851399750851061045248000
15 554999919804958202694991872000
16 1933790758313726593648946202624000