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”).

A241985 as a simple table

na(n)
01
17
213
313
425
537
637
743
837
943
1055
1149
1273
1379
1479
15109
1697
17115
1885
1997
2097
21145
22121
23109
24163
25151
26151
27115
28121
29181
30175
31211
32193
33193
34211
35169
36211
37271
38187
39181

[1,7,13,13,25,37,37,43,37,43,55,49,73,79,79,109,
 97,115,85,97,97,145,121,109,163,151,151,115,121,
 181,175,211,193,193,211,169,211,271,187,181]