# A047678 (b-file synthesized from sequence entry)
1 3
2 24
3 2304
4 15925248
5 26418075402240
6 26294650153960734720000
7 32976469951036202010909081600000000
8 97269850356607540052618180220048900096000000000000
9 1156838823908660229380221584221016428369393918222008320000000000000000