OFFSET
1,1
REFERENCES
G. Balzarotti and P. P. Lava, Le sequenze di numeri interi, Hoepli, 2008, p. 47.
EXAMPLE
First primitive Pythagorean triad: 3, 4, 5.
Weierstrass equation: y^2 = x*(3^2 - x)*(4^2 + x).
Smallest integer solution: (x, y) = (4,20).
As x = b, the first element in the sequence is a = 3.
CROSSREFS
KEYWORD
nonn
AUTHOR
Giorgio Balzarotti, Paolo P. Lava, Jun 10 2006
STATUS
approved