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”).

A129488 as a simple table

na(n)
23
35
45
53
63
73
83
95
1011
113
127
135
143
153
163
173
183
193
203
213
223
233
243
253
263
277
285
293
307
317
323
333
343
353
367
377
383
395
405
413
423
433
443
453
463
473
483
493
503
513
523
533
543
553
563
573
583
593
603
613
623
633
643
653
663
673
683
693
703
713
723
733
743
753
763
773
783
793
803
815
825
833
845
855
863
873
883
893
905
915
923
935
945
953
963
973
983
993
1003
1013
1023
1033
1043
1053
1063

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