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”).

A100876 as a simple table

na(n)
12
23
32
44
53
62
72
83
94
102
114
122
132
143
154
162
173
182
193
204
212
224
233
242
252
262
274
283
292
302
314
323
332
343
352
364
372
383
394
402
413
422
434
442
452
464
473
484
493
502
512
524
532
543
552
564
572
584
592
602
613
622
633
644
652
662
673
682
693
702
712
724
734
742
753
764
772
782
792
802
813
822
834
842
854
863
872
882
892
904
913
924
934
943
953
964
972
982
993
1002
1013
1022
1033
1042
1053

[2,3,2,4,3,2,2,3,4,2,4,2,2,3,4,2,3,2,3,4,2,4,3,2,
 2,2,4,3,2,2,4,3,2,3,2,4,2,3,4,2,3,2,4,2,2,4,3,4,3,
 2,2,4,2,3,2,4,2,4,2,2,3,2,3,4,2,2,3,2,3,2,2,4,4,2,
 3,4,2,2,2,2,3,2,4,2,4,3,2,2,2,4,3,4,4,3,3,4,2,2,3,
 2,3,2,3,2,3]