# A164971 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 0
4 6600
5 2433024
6 37171200
7 2838528000
8 15626061000
9 556121702400
10 1694150836224
11 37611498700800
12 77939846820000
13 1255697372160000
14 1984459226112000
15 25350759437008896
16 32769719746585800