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”).

A155875 as a simple table

na(n)
04
19
26
39
48
59
610
715
812
915
1014
1115
1216
1321
1418
1521
1620
1721
1822
1925
2024
2125
2226
2327
2428
2533
2630
2733
2832
2933
3034
3135
3236
3339
3438
3539
3640
3745
3842
3945
4044
4145
4246
4349
4448
4549
4650
4751
4852
4955
5054
5155
5256
5357
5458
5563
5660
5763
5862
5963
6064
6165
6266
6369
6468
6569
6670

[4,9,6,9,8,9,10,15,12,15,14,15,16,21,18,21,20,21,
 22,25,24,25,26,27,28,33,30,33,32,33,34,35,36,39,
 38,39,40,45,42,45,44,45,46,49,48,49,50,51,52,55,
 54,55,56,57,58,63,60,63,62,63,64,65,66,69,68,69,
 70]