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”).

A289815 as a simple table

na(n)
01
12
21
33
46
53
61
72
81
94
1010
115
1212
1330
1415
154
1610
175
181
192
201
213
226
233
241
252
261
275
2814
297
3015
3142
3221
335
3414
357
3620
3770
3835
3960
40210
41105
4220
4370
4435
455
4614
477
4815
4942
5021
515
5214
537
541
552
561
573
586
593
601
612
621
634
6410
655
6612
6730
6815
694
7010
715
721
732
741
753
766

[1,2,1,3,6,3,1,2,1,4,10,5,12,30,15,4,10,5,1,2,1,3,
 6,3,1,2,1,5,14,7,15,42,21,5,14,7,20,70,35,60,210,
 105,20,70,35,5,14,7,15,42,21,5,14,7,1,2,1,3,6,3,1,
 2,1,4,10,5,12,30,15,4,10,5,1,2,1,3,6]