# A296787 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 24
4 -496
5 36000
6 -3753408
7 556961664
8 -111591202560
9 29054584410624
10 -9541382573767680
11 3858875286730168320
12 -1884995591107521540096
13 1094305223336273239449600
14 -744771228363250138965196800
15 587358379156469629707528929280