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”).

A081514 as a simple table

na(n)
11
20
30
41
52
63
71
82
93
106
111
122
133
146
1512
161
172
183
194
206
218
221
232
243
254
266
278
2824
291
302
313
324
335
3410
3515
3620
371
382
393
404
416
427
4312
4421
4528
461
472
483
494
505
516
5215
5320
5424
5540
561
572
583
594
605
616
628
6312
6415
6524
6640
671
682
693
704
715
726
738
7410
7512
7615
7724
7830
791
802
813
824
835
846
859
8610
8712
8818
8920
9030
9160

[1,0,0,1,2,3,1,2,3,6,1,2,3,6,12,1,2,3,4,6,8,1,2,3,
 4,6,8,24,1,2,3,4,5,10,15,20,1,2,3,4,6,7,12,21,28,
 1,2,3,4,5,6,15,20,24,40,1,2,3,4,5,6,8,12,15,24,40,
 1,2,3,4,5,6,8,10,12,15,24,30,1,2,3,4,5,6,9,10,12,
 18,20,30,60]