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”).

A157996 as a simple table

na(n)
111
217
319
423
529
631
737
841
943
1047
1153
1259
1361
1467
1571
1673
1779
1883
1989
2097
21101
22103
23107
24109
25113
26127
27131
28137
29139
30149
31151
32157
33163
34167
35173
36179
37181
38191
39193
40197
41199
42211
43223
44227
45229
46233
47239
48241
49251
50257
51263
52269
53271
54277
55281
56283

[11,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,
 79,83,89,97,101,103,107,109,113,127,131,137,139,
 149,151,157,163,167,173,179,181,191,193,197,199,
 211,223,227,229,233,239,241,251,257,263,269,271,
 277,281,283]