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”).

A026412
a(n) = position of the n-th n in A026409.
0
1, 4, 9, 18, 27, 40, 55, 72, 89, 113, 140, 167, 194, 221, 253, 294, 329, 369, 419, 452, 502, 552, 618, 677, 721, 776, 836, 894, 976, 1049, 1121, 1175, 1248, 1348, 1415, 1489, 1574, 1658, 1756, 1845, 1925, 2037, 2122, 2224, 2356, 2442, 2551, 2635, 2762, 2875, 3000
OFFSET
1,2
CROSSREFS
Sequence in context: A100435 A160172 A256536 * A101424 A301197 A008021
KEYWORD
nonn
EXTENSIONS
More terms from Sean A. Irvine, Sep 26 2019
STATUS
approved