A331223 a(n) = denominator of squared radius R^2 of the circumcircle of the n-th non-obtuse triangle with integer sides i <= j <= k <= sqrt(i^2 + j^2) in a list of such triangles, the list being sorted by increasing size of R. Numerators are A331222.

3, 15, 3, 35, 32, 1, 20, 63, 15, 55, 3, 4, 99, 96, 39, 91, 84, 3, 143, 7, 35, 5, 64, 8, 119, 1, 51, 255, 195, 192, 96, 187, 180, 95, 171, 160, 3135, 255, 5, 63, 3, 3, 247, 15, 15, 231, 132, 55, 207, 1760, 323, 11, 320, 35, 115, 8855, 308, 3, 299, 20

Offset

1,1

Comments

See A331222.

Links

Table of n, a(n) for n=1..60.

Example

See A331222.

Crossrefs

Cf. A331222, A331227, A331228.

Sequence in context: A331228 A331697 A331225 * A370538 A369370 A009215

Adjacent sequences: A331220 A331221 A331222 * A331224 A331225 A331226

Keyword

nonn,frac

Author

Hugo Pfoertner, Jan 12 2020

Status

approved