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”).

A343853 as a simple table

na(n)
11
21
31
42
52
61
71
82
93
102
111
122
133
143
151
161
172
183
192
201
211
222
233
244
254
263
272
283
294
304
311
321
332
343
352
361
371
382
393
404
415
424
433
442
451
462
473
484
495
505
514
523
534
545
555
561
571
582
593
602
611
621
632
643
654
665
674
683
692
701
711
722
733
744
755
766
776
785
794
803
812
823
834
845
856
866
875
884
895
906
916

[1,1,1,2,2,1,1,2,3,2,1,2,3,3,1,1,2,3,2,1,1,2,3,4,
 4,3,2,3,4,4,1,1,2,3,2,1,1,2,3,4,5,4,3,2,1,2,3,4,5,
 5,4,3,4,5,5,1,1,2,3,2,1,1,2,3,4,5,4,3,2,1,1,2,3,4,
 5,6,6,5,4,3,2,3,4,5,6,6,5,4,5,6,6]