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”).

A026461 as a simple table

na(n)
12
23
35
46
59
611
712
814
915
1017
1118
1219
1321
1424
1527
1629
1730
1833
1935
2037
2138
2239
2341
2442
2544
2645
2747
2848
2950
3051
3154
3257
3359
3460
3562
3663
3765
3866
3967
4069
4171
4275
4377
4478
4581
4684
4787
4889
4990
5091
5195
5296
5399
54101
55102
56104
57105
58107
59108
60110

[2,3,5,6,9,11,12,14,15,17,18,19,21,24,27,29,30,33,
 35,37,38,39,41,42,44,45,47,48,50,51,54,57,59,60,
 62,63,65,66,67,69,71,75,77,78,81,84,87,89,90,91,
 95,96,99,101,102,104,105,107,108,110]