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”).

A077425 as a simple table

na(n)
15
213
317
421
529
633
737
841
945
1053
1157
1261
1365
1469
1573
1677
1785
1889
1993
2097
21101
22105
23109
24113
25117
26125
27129
28133
29137
30141
31145
32149
33153
34157
35161
36165
37173
38177
39181
40185
41189
42193
43197
44201
45205
46209
47213
48217
49221
50229
51233
52237
53241
54245
55249
56253
57257

[5,13,17,21,29,33,37,41,45,53,57,61,65,69,73,77,
 85,89,93,97,101,105,109,113,117,125,129,133,137,
 141,145,149,153,157,161,165,173,177,181,185,189,
 193,197,201,205,209,213,217,221,229,233,237,241,
 245,249,253,257]