# A012446 (b-file synthesized from sequence entry)
0 2
1 0
2 280
3 -2688
4 1016608
5 -44971520
6 22528934272
7 -2475890192384
8 1731096311210496
9 -365422134993502208
10 343466758613102303232
11 -121096429560806448922624
12 146997236520941470929985536