# A358448 (b-file synthesized from sequence entry)
1 1
2 2
3 12
4 60
5 5040
6 3603600
7 908107200
8 15437822400
9 293318625600
10 267154604196480000
11 4935147003321575040000
12 1963886355464640647040000
13 74963506074440798138163840000
14 65039484811827775408882461490752000000
15 3415186532666352810621130006203072000000