# A181856 (b-file synthesized from sequence entry)
0 1
1 12
2 1440
3 362880
4 87091200
5 11496038400
6 376610217984000
7 903864523161600
8 36877672544993280000
9 529710888436283473920000
10 3496091863679470927872000000
11 50785334440817577689088000000