# A012465 (b-file synthesized from sequence entry)
0 1
1 0
2 12
3 -480
4 31248
5 -3160320
6 462297792
7 -92467554816
8 24237361774848
9 -8058187934539776
10 3312017870282345472
11 -1648428171351870627840
12 976764310209146448384000
13 -679332936418413117235200000