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”).

A121326 as a simple table

na(n)
15
217
337
4101
5197
6257
7401
8577
9677
101297
111601
122917
133137
144357
155477
167057
178101
188837
1912101
2013457
2114401
2215377
2315877
2416901
2517957
2621317
2722501
2824337
2925601
3028901
3130977
3232401
3333857
3441617
3542437
3644101
3750177
3852901
3955697

[5,17,37,101,197,257,401,577,677,1297,1601,2917,
 3137,4357,5477,7057,8101,8837,12101,13457,14401,
 15377,15877,16901,17957,21317,22501,24337,25601,
 28901,30977,32401,33857,41617,42437,44101,50177,
 52901,55697]