# A174881 (b-file synthesized from sequence entry)
1 2
2 36
3 1728
4 160000
5 24300000
6 5489031744
7 1727094849536
8 722204136308736
9 387420489000000000
10 259374246010000000000
11 211988959518950443450368
12 207728067204059288762843136
13 240396446553194784543350546432