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”).

A090670 as a simple table

na(n)
13
25
37
411
513
617
723
825
931
1035
1137
1241
1343
1453
1555
1665
1767
1871
1977
2083
2185
2291
2397
24101
25107
26113
27115
28121
29127
30133
31137
32143
33155
34157
35167
36175
37181
38185
39191
40193
41211
42217
43221
44223
45233
46235
47241
48245
49247
50251
51253
52263
53275
54283
55287
56295
57301
58305

[3,5,7,11,13,17,23,25,31,35,37,41,43,53,55,65,67,
 71,77,83,85,91,97,101,107,113,115,121,127,133,137,
 143,155,157,167,175,181,185,191,193,211,217,221,
 223,233,235,241,245,247,251,253,263,275,283,287,
 295,301,305]