OFFSET
0,2
EXAMPLE
a(4)= 13 = 4+9 because 9 is the least square > 4.
PROG
(PARI) A165776(n)=n+(sqrtint(n)+1)^2
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
M. F. Hasler, Oct 05 2009
STATUS
approved