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”).

A176166 as a simple table

na(n)
11
21
31
41
51
62
72
82
91
101
111
121
131
143
153
162
172
181
191
201
211
222
232
242
253
263
271
281
291
304
314
321
331
342
352
361
371
382
392
401
411
421
432
442
451
463
473
482
492
501
511
523
533
542
552
561
571
581
591
601
612
625
635
641
651
661
671
681
691
702
712
721
732
742
751
761
771
783
794
804
811
821
831
841
851
862
872
882
892
901
911
921
931
944
954
962
972
982
992
1001
1011
1022
1032
1041
1051

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