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”).

A343068 as a simple table

na(n)
11
21
31
42
52
61
71
83
92
102
112
122
132
141
152
164
174
182
192
204
211
222
232
243
254
262
273
282
292
302
312
325
332
344
352
364
374
382
392
406
416
421
431
444
454
462
472
484
492
504
514
524
534
543
554
563
572
582
592
604
614
622
632
646
654
662
672
688
692
702
712
726
736
744
754
764
772
782
792
808
814
826
836
842
858
861

[1,1,1,2,2,1,1,3,2,2,2,2,2,1,2,4,4,2,2,4,1,2,2,3,
 4,2,3,2,2,2,2,5,2,4,2,4,4,2,2,6,6,1,1,4,4,2,2,4,2,
 4,4,4,4,3,4,3,2,2,2,4,4,2,2,6,4,2,2,8,2,2,2,6,6,4,
 4,4,2,2,2,8,4,6,6,2,8,1]