login

A177138 as a simple table

na(n)
11
23
312
460
5360
62520
720160
819958400
9239500800
103113510400
1143589145600
12177843714048000
133201186852864000
1460822550204416000
151216451004088320000
1612926008369442488320000
17310224200866619719680000
184420880996869850977271808000000

[1,3,12,60,360,2520,20160,19958400,239500800,
 3113510400,43589145600,177843714048000,
 3201186852864000,60822550204416000,
 1216451004088320000,12926008369442488320000,
 310224200866619719680000,
 4420880996869850977271808000000]