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”).

A131437 as a simple table

na(n)
11
23
35
47
59
613
715
817
921
1029
1131
1233
1337
1445
1561
1663
1765
1869
1977
2093
21125
22127
23129
24133
25141
26157
27189
28253
29255
30257
31261
32269
33285
34317
35381
36509
37511
38513
39517
40525
41541
42573
43637
44765
451021
461023
471025
481029
491037
501053
511085
521149
531277
541533
552045

[1,3,5,7,9,13,15,17,21,29,31,33,37,45,61,63,65,69,
 77,93,125,127,129,133,141,157,189,253,255,257,261,
 269,285,317,381,509,511,513,517,525,541,573,637,
 765,1021,1023,1025,1029,1037,1053,1085,1149,1277,
 1533,2045]