OFFSET
1,1
COMMENTS
EXAMPLE
a(1)=6569 since p=6569 is the least prime of the form 4k+1 for which sp-(floor(sqrt(sp)))^2 is not a square for s=1..25, but 26p-(floor(sqrt(26p)))^2 is a square (for p=6569 it is 225).
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Shevelev, Sep 30 2008, Oct 03 2008
STATUS
approved