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A331245
Triangles with integer sides i <= j <= k sorted by radius of enclosing circle, and, in case of ties, lexicographically by side lengths (smallest first). The sequence gives the middle side j. The other sides are in A331244 and A331246.
5
1, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 3, 4, 5, 5, 4, 5, 5, 5, 5, 4, 5, 4, 6, 5, 6, 6, 5, 6, 6, 6, 6, 5, 6, 4, 5, 5, 6, 7, 7, 6, 7, 7, 6, 7, 7, 7, 6, 7, 5, 6, 5, 6, 7, 8, 6, 8, 7, 7, 8, 8, 7, 8, 7, 8, 8, 8, 7, 8, 6, 7, 8, 5, 6, 7, 6, 7, 9, 8, 9, 9, 7, 8, 9
OFFSET
1,2
COMMENTS
The enclosing circle differs from the circumcircle by limiting the radius to (longest side)/2 for obtuse triangles, i.e., those with i^2 + j^2 < k^2.
EXAMPLE
See A331244.
CROSSREFS
Cf. A331244 (shortest side), A331246 (longest side).
Sequence in context: A375834 A357186 A316844 * A130239 A091092 A218461
KEYWORD
nonn
AUTHOR
Hugo Pfoertner, Jan 20 2020
STATUS
approved