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”).

A339968 as a simple table

na(n)
11
22
33
44
55
67
79
811
913
1015
1116
1217
1318
1419
1521
1623
1725
1827
1929
2031
2132
2233
2335
2436
2537
2639
2741
2843
2945
3047
3150
3251
3353
3457
3559
3661
3764
3865
3967
4069
4171
4272
4373
4475
4577
4679
4781
4883
4987
5089
5191
5293
5395
5497
5598
5699
57100
58101
59103
60105
61107
62109
63111
64113
65119
66121
67123
68125
69127
70129
71131
72135
73137
74139
75141
76143

[1,2,3,4,5,7,9,11,13,15,16,17,18,19,21,23,25,27,
 29,31,32,33,35,36,37,39,41,43,45,47,50,51,53,57,
 59,61,64,65,67,69,71,72,73,75,77,79,81,83,87,89,
 91,93,95,97,98,99,100,101,103,105,107,109,111,113,
 119,121,123,125,127,129,131,135,137,139,141,143]