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”).

A190911 as a simple table

na(n)
13
23
35
43
53
65
73
83
95
103
113
127
133
143
157
163
173
185
193
203
215
223
233
245
253
263
277
283
293
307
313
323
335
343
353
365
373
383
395
403
413
4211
433
443
457
463
473
485
493
503
515
523
533
545
553
563
577
583
593
6011
613
623
635
643
653
665
673
683
695
703
713
727
733
743
757
763
773
785
793
803
815
823
833
845
853
863

[3,3,5,3,3,5,3,3,5,3,3,7,3,3,7,3,3,5,3,3,5,3,3,5,
 3,3,7,3,3,7,3,3,5,3,3,5,3,3,5,3,3,11,3,3,7,3,3,5,
 3,3,5,3,3,5,3,3,7,3,3,11,3,3,5,3,3,5,3,3,5,3,3,7,
 3,3,7,3,3,5,3,3,5,3,3,5,3,3]