OFFSET
1,1
COMMENTS
The central divisors are the two complementary divisors closest to the square
root of a number, as tabulated in A162348.
EXAMPLE
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Juri-Stepan Gerasimov, Jul 17 2009
EXTENSIONS
Missing pairs inserted by R. J. Mathar, Jul 19 2009
STATUS
approved