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”).

A135511 as a simple table

na(n)
31
42
53
61
73
82
91
102
113
121
133
142
151
162
173
181
193
202
211
222
233
241
253
262
271
282
293
301
313
322
331
342
353
361
373
382
391
402
413
421
433
442
451
462
473
481
493
502
511
522
533
541
553
562
571
582
593
601
613
622
631
642
653
661
673
682
691
702
713
721
733
742
751
762
773
781
793
802
811
822
833
841
853
862
871
882
893
901
913
922
931
942
953
961
973
982
991
1002
1013
1021
1033
1042
1051
1062
1073

[1,2,3,1,3,2,1,2,3,1,3,2,1,2,3,1,3,2,1,2,3,1,3,2,
 1,2,3,1,3,2,1,2,3,1,3,2,1,2,3,1,3,2,1,2,3,1,3,2,1,
 2,3,1,3,2,1,2,3,1,3,2,1,2,3,1,3,2,1,2,3,1,3,2,1,2,
 3,1,3,2,1,2,3,1,3,2,1,2,3,1,3,2,1,2,3,1,3,2,1,2,3,
 1,3,2,1,2,3]