# A013446 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 160
4 -1792
5 484224
6 -30840832
7 7718963200
8 -1315838558208
9 426971596029952
10 -136067874243248128
11 61019499461102272512
12 -30246038986591439945728
13 18590454932996390870056960