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”).

A155009 as a simple table

na(n)
12
27
311
417
519
623
741
843
961
1067
11107
12109
13131
14137
15179
16197
17263
18269
19331
20353
21397
22641
23677
24743
25859
26941
271163
281171
291213
301303
311319
321433
331447
341453
351543
361601
371783
382221
392351
402371
412417
422503
432657
442689
452791
462797
472909
483037
493301

[2,7,11,17,19,23,41,43,61,67,107,109,131,137,179,
 197,263,269,331,353,397,641,677,743,859,941,1163,
 1171,1213,1303,1319,1433,1447,1453,1543,1601,1783,
 2221,2351,2371,2417,2503,2657,2689,2791,2797,2909,
 3037,3301]