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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”).

A378999 as a simple table

na(n)
11
23
31
45
55
62
71
87
91
101
111
122
133
144
152
169
172
184
191
201
211
222
231
242
251
261
271
283
293
301
311
3211
331
341
353
363
377
382
392
401
412
422
431
442
453
465
471
482
491
502
513
521
534
542
552
563
571
581
591
601
613
623
631
6413
651
663
671
681
691
701
711
723
732
741
751
762
771
781
791
801
811
821
831
842
851
862
872
882
892
901
916
923
931
943
952
962
972
983
991
1002
1016
1021
1031
1041
1052

[1,3,1,5,5,2,1,7,1,1,1,2,3,4,2,9,2,4,1,1,1,2,1,2,
 1,1,1,3,3,1,1,11,1,1,3,3,7,2,2,1,2,2,1,2,3,5,1,2,
 1,2,3,1,4,2,2,3,1,1,1,1,3,3,1,13,1,3,1,1,1,1,1,3,
 2,1,1,2,1,1,1,1,1,1,1,2,1,2,2,2,2,1,6,3,1,3,2,2,2,
 3,1,2,6,1,1,1,2]