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”).

A242269 as a simple table

na(n)
13
25
311
412
518
620
721
824
925
1035
1143
1245
1353
1458
1561
1671
1773
1875
19123
20124
21140
22147
23157
24205
25208
26233
27243
28245
29293
30301

[3,5,11,12,18,20,21,24,25,35,43,45,53,58,61,71,73,
 75,123,124,140,147,157,205,208,233,243,245,293,
 301]