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”).

A179617 as a simple table

na(n)
01
12
23
31
41
51
63
71
81
93
102
111
126
133
144
152
161
1714
181
191
205
212
222
232
241
253
2623
271
2826
2923
3013
311
321
331
345
352
368
3712
381
391
401
413
425
4323
4431
457
461
471
482
495
504
511
521
536
541
5572
564
571
581
591
607
612
621
631
642
6549
663
671
684
692
703
712
721
731
746
752
763
773
781
791
8026
812
822
8311
845
853
865
871
882
891
9012
911
92558
931
941
953
961
9776

[1,2,3,1,1,1,3,1,1,3,2,1,6,3,4,2,1,14,1,1,5,2,2,2,
 1,3,23,1,26,23,13,1,1,1,5,2,8,12,1,1,1,3,5,23,31,
 7,1,1,2,5,4,1,1,6,1,72,4,1,1,1,7,2,1,1,2,49,3,1,4,
 2,3,2,1,1,6,2,3,3,1,1,26,2,2,11,5,3,5,1,2,1,12,1,
 558,1,1,3,1,76]