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”).

A252733 as a simple table

na(n)
02
11
21
31
44
52
61
72
81
91
103
115
128
134
142
151
167
175
1810
195
206
213
2219
2371
2446
2523
2614
277
284
292
301
313
3215
3313
3438
3519
3610
375
3828
3914
407
418
424
432
441
4511
4614
477
486
493
508
514
522
531
543
5554
5627
5717
5811
5916
608
614
622
631
6438
6519
6652
6726
6813
6915
7011

[2,1,1,1,4,2,1,2,1,1,3,5,8,4,2,1,7,5,10,5,6,3,19,
 71,46,23,14,7,4,2,1,3,15,13,38,19,10,5,28,14,7,8,
 4,2,1,11,14,7,6,3,8,4,2,1,3,54,27,17,11,16,8,4,2,
 1,38,19,52,26,13,15,11]