# A323425 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 0
4 9
5 648
6 57600
7 6615000
8 972504225
9 179499220992
10 40789783609344
11 11212877910528000
12 3671848787797265625
13 1413385410212064432000
14 632129969391038455873536
15 325176984737061807515098752
16 190691488202627199302740850625
17 126479088749202444199526400000000