login

A073919 as a simple table

na(n)
02
13
25
313
417
573
697
7193
8257
9769
103457
117681
1215361
1312289
1440961
15114689
1665537
17737281
181376257
19786433
205308417
217340033
2214155777
2328311553
24104857601
25113246209
26167772161
27469762049
282113929217
291811939329

[2,3,5,13,17,73,97,193,257,769,3457,7681,15361,
 12289,40961,114689,65537,737281,1376257,786433,
 5308417,7340033,14155777,28311553,104857601,
 113246209,167772161,469762049,2113929217,
 1811939329]