# A002860 (b-file synthesized from sequence entry)
1 1
2 2
3 12
4 576
5 161280
6 812851200
7 61479419904000
8 108776032459082956800
9 5524751496156892842531225600
10 9982437658213039871725064756920320000
11 776966836171770144107444346734230682311065600000