# A012686 (b-file synthesized from sequence entry)
0 1
1 0
2 12
3 -480
4 35280
5 -4208640
6 737643456
7 -178203637248
8 56744323733760
9 -23028982493429760
10 11602867906455268352
11 -7105927543880909185024
12 5198792960623369943994368
13 -4478214849312972324010721280