OFFSET
1,1
COMMENTS
Even terms are much more frequent. Among first 10000 terms exactly 612 are odd. First odd terms are 189, 243, 315, 405, 525, 567, 675; corresponding indices are 58, 77, 102, 130, 169, 182, 216. - Zak Seidov, Mar 06 2015
LINKS
Zak Seidov, Table of n, a(n) for n = 1..10000
EXAMPLE
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Aug 17 2004
STATUS
approved