A376209 Numbers k for which the hypotenuse z=4*k+1 occurs in more than one primitive Pythagorean triangle, such that 2 distinct triangles (x1,y1,z), (x2,y2,z) with opposite parity of their short legs x1 and x2 exist (xi < yi < z).

16, 21, 36, 46, 51, 55, 66, 76, 91, 94, 111, 121, 123, 126, 136, 157, 171, 172, 181, 186, 196, 211, 216, 225, 237, 241, 246, 268, 276, 286, 289, 291, 297, 301, 310, 315, 331, 336, 346, 351, 354, 361, 366, 378, 384, 396, 412, 421, 436, 441, 442, 445, 456, 463, 466

Offset: 1

Author

Hugo Pfoertner, Sep 21 2024

Keywords

• nonn

Examples

			See A376210.
		

Links

• Hugo Pfoertner, Table of n, a(n) for n = 1..10000

Crossrefs

Intersection of A375750 and A376208.

Cf. A376210, A376211.

Programs

PARI

\\ Uses function is_a376208 from A376208
is(n) = is_a376208(n,0) && is_a376208(n,1)