# A112359 (b-file synthesized from sequence entry)
0 1
1 2
2 20
3 1296
4 616896
5 2294480000
6 68803020000000
7 16921170978243840000
8 34496793424028349312532480
9 587395062985562798532990766497792
10 84034508984208959408391703340160000000000
11 101510206136861741998326287566434701976960000000000