login

A147176 as a simple table

na(n)
11
21
31
41
51
61
71
85
925
1049
1181
12173
13659
141949
156591
1626979
17151047
18720521
194123761
2021126009
21143739573

[1,1,1,1,1,1,1,5,25,49,81,173,659,1949,6591,26979,
 151047,720521,4123761,21126009,143739573]