login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A162797 as a simple table

na(n)
11
21
35
41
55
65
717
81
95
105
1117
125
1317
1421
1549
161
175
185
1917
205
2117
2221
2349
245
2517
2621
2749
2821
2953
3081
31129
321
335
345
3517
365
3717
3821
3949
405
4117
4221
4349
4421
4553
4681
47129
485
4917
5021
5149
5221
5353
5481
55129

[1,1,5,1,5,5,17,1,5,5,17,5,17,21,49,1,5,5,17,5,17,
 21,49,5,17,21,49,21,53,81,129,1,5,5,17,5,17,21,49,
 5,17,21,49,21,53,81,129,5,17,21,49,21,53,81,129]