A213189 Triangular numbers which are leg of a Pythagorean triple with hypotenuse in A213188.

6, 36, 91, 120, 210, 253, 300, 378, 528, 630, 1176, 2016, 2346, 3003, 3240, 3828, 4560, 4656, 4950, 5460, 6105, 6903, 7140, 7260, 8778, 10296, 11628, 13530, 14028, 14196, 15400, 17766, 19110, 23220, 23436, 24310, 25200, 26796, 32640, 34980, 41616, 43365, 44253, 52326, 55278

Offset: 1

Author

Antonio Roldán, Feb 28 2013

Keywords

• nonn

Examples

			Triangular 91 and triangular 325 form a Pythagorean triple {325, 91, 312}.
		

Crossrefs

Cf. A213188.

Programs

PARI

{for(i=1,10^3,k=i+1;v=1;a=i*(i+1)/2;while(k