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”).

A319431 as a simple table

na(n)
12
23
32
45
52
63
710
82
93
102
115
122
1319
142
153
162
175
182
193
2010
212
223
232
2437
252
263
272
285
292
303
3110
322
333
342
355
362
3719
382
393
402
415
422
433
4474
452
463
472
485
492
503
5110
522
533
542
555
562
5719
582
593
602
615
622
633
6410
652
663
672
6837
692
703
712
725
732
743
7510
762
773
782
795
802
81147
822
833
842
855
862
873
8810
892
903
912
925
932
9419
952
963
972
985
992

[2,3,2,5,2,3,10,2,3,2,5,2,19,2,3,2,5,2,3,10,2,3,2,
 37,2,3,2,5,2,3,10,2,3,2,5,2,19,2,3,2,5,2,3,74,2,3,
 2,5,2,3,10,2,3,2,5,2,19,2,3,2,5,2,3,10,2,3,2,37,2,
 3,2,5,2,3,10,2,3,2,5,2,147,2,3,2,5,2,3,10,2,3,2,5,
 2,19,2,3,2,5,2]