login

A023380 as a simple table

na(n)
15
27
39
411
515
621
729
853
9101
10197
11471
121205
133927
1419651
15137593
161243889
1717815781
18446377513
1921886017793
202290044969551
21697988552388639
22733856563397342627
233102723977467356326765
2472303720506476062470266309

[5,7,9,11,15,21,29,53,101,197,471,1205,3927,19651,
 137593,1243889,17815781,446377513,21886017793,
 2290044969551,697988552388639,733856563397342627,
 3102723977467356326765,72303720506476062470266309]