A331228 a(n) = denominator of squared radius R^2 of the circumcircle of the n-th triangle with integer sides i <= j <= k in a list of such triangles, the list being sorted by increasing size of R. Numerators are A331227.

3, 15, 3, 7, 35, 32, 1, 20, 63, 15, 15, 55, 3, 4, 99, 96, 39, 91, 231, 11, 84, 3, 224, 143, 7, 7, 35, 5, 64, 8, 39, 119, 455, 1, 51, 255, 195, 320, 192, 96, 96, 187, 180, 95, 171, 55, 160, 3135, 399, 255, 5, 63, 3, 3, 3, 3, 247, 15, 15, 15, 15, 36, 231, 132, 55

Offset: 1

Author

Hugo Pfoertner, Jan 12 2020

Keywords

• nonn
• frac

Comments

See A331222 and A331227.

Examples

			See A331227.
		

Crossrefs

Cf. A331222, A331223, A331227.