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”).

A238386 as a simple table

na(n)
10
20
31
40
51
62
71
80
90
100
111
121
132
142
151
162
171
182
193
202
213
223
232
243
252
262
272
282
293
301
311
322
332
343
352
361
372
381
391
403
413
422
431
441
453
463
475
485
492
502
512
523
534
545
555
564
573
582
592
602
613
622
633
644
651
663
674
683
694
706
717
726
733
742
752
762
773
784
795
803

[0,0,1,0,1,2,1,0,0,0,1,1,2,2,1,2,1,2,3,2,3,3,2,3,
 2,2,2,2,3,1,1,2,2,3,2,1,2,1,1,3,3,2,1,1,3,3,5,5,2,
 2,2,3,4,5,5,4,3,2,2,2,3,2,3,4,1,3,4,3,4,6,7,6,3,2,
 2,2,3,4,5,3]