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”).

A168485
A165342(3n)/3.
0
0, 1, 1, 3, 4, 5, 3, 7, 2, 9, 5, 11, 6, 13, 7, 15, 4, 17, 9, 19, 80, 21, 11, 23, 6, 25, 13, 27, 14, 29, 15, 31, 8, 33, 17, 35, 36, 37, 19, 39, 10, 41, 21, 43, 22, 45, 23, 47, 12, 49, 25, 51, 104, 53, 27, 55, 14, 57, 29, 59
OFFSET
0,4
FORMULA
a(n) = A166720(n)/3.
a(2n+1) = 2n+1.
CROSSREFS
Sequence in context: A137926 A218342 A090395 * A276737 A270027 A271726
KEYWORD
nonn
AUTHOR
Paul Curtz, Nov 27 2009
STATUS
approved