A120213 "a" values providing solution x != b in A120211, i.e., in y^2 = x*(a^2 - x)*(b^2 + x) with a, b legs in primitive Pythagorean triads.

4, 12, 12, 15, 15, 16, 20, 20, 21, 24, 24, 28, 28, 32, 33, 35, 36, 36, 39, 40, 40, 44, 44, 45, 48, 48, 51, 52, 52, 55, 56, 56, 57, 60, 60, 60, 60, 63, 64, 65, 68, 68, 69, 72, 72, 75, 76, 76, 77, 77

Offset: 0

Author

Giorgio Balzarotti, Paolo P. Lava, Jun 10 2006

Keywords

• nonn

Examples

			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

Cf. A120210, A120211, A120212.