

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.


3



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
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OFFSET

0,1


LINKS

Table of n, a(n) for n=0..49.


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

Cf. A120210, A120211, A120212.
Sequence in context: A063608 A074258 A253137 * A005886 A096442 A211437
Adjacent sequences: A120210 A120211 A120212 * A120214 A120215 A120216


KEYWORD

nonn


AUTHOR

Giorgio Balzarotti, Paolo P. Lava, Jun 10 2006


STATUS

approved



