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”).

A064884 as a simple table

na(n)
13
21
33
44
51
63
77
84
95
101
113
1210
137
1411
154
169
175
186
191
203
2113
2210
2317
247
2518
2611
2715
284
2913
309
3114
325
3311
346
357
361
373
3816
3913
4023
4110
4227
4317
4424
457
4625
4718
4829
4911
5026
5115
5219
534
5417
5513
5622
579
5823
5914
6019
615
6216
6311
6417
656
6613

[3,1,3,4,1,3,7,4,5,1,3,10,7,11,4,9,5,6,1,3,13,10,
 17,7,18,11,15,4,13,9,14,5,11,6,7,1,3,16,13,23,10,
 27,17,24,7,25,18,29,11,26,15,19,4,17,13,22,9,23,
 14,19,5,16,11,17,6,13]