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”).

A176207 as a simple table

na(n)
31
42
51
63
71
82
91
102
113
121
134
141
153
161
171
182
192
201
212
221
231
242
254
262
273
281
291
305
311
324
331
341
353
362
371
383
391
401
411
422
432
441
451
462
471
481
491
503
514
522
535
542
554
561
572
583
592
602
613
621
631
641
656
661
675
681
691
704
712
721
734
741
751
761
773
783
791
803
812
821
831
843
851
861
871
881
892
902
912
921
932
942
951
961
971
982
991
1001
1011
1021

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