# A012385 (b-file synthesized from sequence entry)
0 1
1 0
2 12
3 360
4 24080
5 2520000
6 388466496
7 82494828416
8 23101056559360
9 8247662229497856
10 3656849221865495552
11 1971359917831265798144
12 1269841106398055675924480
13 963238435991748310206791680