cp's OEIS Frontend

A331246 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 longest side k. The other sides are in A331244 and A331245.

%I A331246 #4 Jan 20 2020 13:05:28
%S A331246 1,2,2,3,3,3,3,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,6,6,6,6,
%T A331246 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,8,8,8,8,8,8,8,8,8,8,8,8,7,8,8,8,8,8,8,
%U A331246 8,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9
%N A331246 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 longest side k. The other sides are in A331244 and A331245.
%C A331246 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.
%e A331246 See A331244.
%Y A331246 Cf. A331244 (shortest side), A331245 (middle side).
%K A331246 nonn
%O A331246 1,2
%A A331246 _Hugo Pfoertner_, Jan 20 2020