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”).

A220468 as a simple table

na(n)
01
110
22
34
43
52
65
74
82
96
101
1110
122
134
143
152
165
174
182
196
201
2110
222
234
243
252
265
274
282
296
301
3110
322
334
343
352
365
374
382
396
401
4110
422
434
443
452
465
474
482
496
501
5110
522
534
543
552
565
574
582
596
601
6110
622
634
643
652
665
674
682
696
701
7110
722
734
743
752
765
774
782
796
801
8110
822
834
843
852
865
874
882
896

[1,10,2,4,3,2,5,4,2,6,1,10,2,4,3,2,5,4,2,6,1,10,2,
 4,3,2,5,4,2,6,1,10,2,4,3,2,5,4,2,6,1,10,2,4,3,2,5,
 4,2,6,1,10,2,4,3,2,5,4,2,6,1,10,2,4,3,2,5,4,2,6,1,
 10,2,4,3,2,5,4,2,6,1,10,2,4,3,2,5,4,2,6]