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”).

A368857 as a simple table

na(n)
00
11
21
32
42
52
62
73
83
92
102
112
122
132
143
154
164
173
182
192
202
213
222
233
243
252
262
272
283
293
304
315
325
334
343
353
362
372
382
393
403
412
423
433
442
452
463
474
484
493
502
512
522
533
542
553
563
573
583
593
604
614
625
636
646
655
664
674
683
693
703
713
723
733
743
753
762
773
783
794
804
813
822
832
843
854
863

[0,1,1,2,2,2,2,3,3,2,2,2,2,2,3,4,4,3,2,2,2,3,2,3,
 3,2,2,2,3,3,4,5,5,4,3,3,2,2,2,3,3,2,3,3,2,2,3,4,4,
 3,2,2,2,3,2,3,3,3,3,3,4,4,5,6,6,5,4,4,3,3,3,3,3,3,
 3,3,2,3,3,4,4,3,2,2,3,4,3]