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”).

A031951 as a simple table

na(n)
16
28
39
410
511
612
713
815
916
1017
1118
1219
1320
1422
1523
1624
1725
1826
1927
2029
2130
2231
2332
2433
2534
2636
2737
2842
2944
3045
3146
3247
3349
3450
3555
3657
3761
3864
3967
4071
4172
4274
4379
4480
4584
4685
4787
4888
4989
5092
5193
5298
53100
54104
55107
56108
57111
58115
59117

[6,8,9,10,11,12,13,15,16,17,18,19,20,22,23,24,25,
 26,27,29,30,31,32,33,34,36,37,42,44,45,46,47,49,
 50,55,57,61,64,67,71,72,74,79,80,84,85,87,88,89,
 92,93,98,100,104,107,108,111,115,117]