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”).

A351522 as a simple table

na(n)
00
11
21
31
42
51
61
73
83
91
101
113
123
133
141
151
163
174
184
193
201
211
223
234
243
254
263
271
281
293
305
315
325
335
343
351
361
373
384
395
404
415
424
433
441
451
463
475
485
496
506
515
525
533
541
551
563
574
585
596
605
616
625
634
643
651
661
673
685
696
706
717
727
736
746
755
763
771
781
793
804
815
826
837
846
857
866
875
884
893
901

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