OFFSET
1,2
EXAMPLE
a(3) = 23 because the solutions to x^2 + y^2 = 5*13*17 are (x,y) = (23,24), (9,32), (4,33), (12,31) of which the largest value of x is 23.
CROSSREFS
KEYWORD
nonn
AUTHOR
Colin Barker, Jan 25 2014
STATUS
approved