login

A177847 as a simple table

na(n)
11
21
31
42
54
62
76
860
960
106
1124
122016
1312096
142016
1524
16120
17120960
187983360
197983360
20120960
21120
22720
2311404800
2412454041600
25149448499200
2612454041600
2711404800
28720
295040
301556755200
3138109367296000
328688935743488000
338688935743488000

[1,1,1,2,4,2,6,60,60,6,24,2016,12096,2016,24,120,
 120960,7983360,7983360,120960,120,720,11404800,
 12454041600,149448499200,12454041600,11404800,720,
 5040,1556755200,38109367296000,8688935743488000,
 8688935743488000]