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 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS 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

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Last modified February 22 14:45 EST 2020. Contains 332136 sequences. (Running on oeis4.)