login

A146736 as a simple table

na(n)
11
21
31
41
51
61
75
819
945
1071
11181
12579
132359
149473
1549633
16219719
171381673
187390193
1956382323
20390282737
213729442205
2231973256841

[1,1,1,1,1,1,5,19,45,71,181,579,2359,9473,49633,
 219719,1381673,7390193,56382323,390282737,
 3729442205,31973256841]