OFFSET
0,1
EXAMPLE
Primitive Pythagorean triad: 4, 3, 5.
Weierstrass equation: y^2 = x*(4^2 - x)*(3^2 + x).
Smallest integer solution: (x, y) = (6,30).
As x != b, a = 4 is in the sequence.
CROSSREFS
KEYWORD
nonn
AUTHOR
Giorgio Balzarotti, Paolo P. Lava, Jun 10 2006
STATUS
approved