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A024160 Number of integer-sided triangles with sides a,b,c, a<b<c, a+b+c=n such that (c-b)(c-a)(b-a) divides (c+b)(c+a)(b+a). 1

%I #6 Jun 20 2019 19:27:58

%S 0,0,0,0,0,0,0,0,1,0,1,1,1,1,2,1,2,2,3,1,3,3,4,2,3,3,4,2,5,3,4,2,5,5,

%T 2,4,6,6,5,2,6,5,5,3,5,5,7,5,6,5,7,4,9,7,6,4,8,7,8,6,9,6,8,4,4,8,11,7,

%U 10,4,9,8,8,7,8,8,9,9,7,3,10,8,8,8,5,9,11,7,11,8,7,9,12,12,8,7,10,9,13,7

%N Number of integer-sided triangles with sides a,b,c, a<b<c, a+b+c=n such that (c-b)(c-a)(b-a) divides (c+b)(c+a)(b+a).

%H Sean A. Irvine, <a href="https://github.com/archmageirvine/joeis/blob/master/src/irvine/oeis/a024/A024160.java">Java program</a> (github)

%K nonn

%O 1,15

%A _Clark Kimberling_

%E a(100) corrected by _Sean A. Irvine_, Jun 20 2019

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Last modified April 16 00:00 EDT 2024. Contains 371696 sequences. (Running on oeis4.)