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A024161 Number of integer-sided triangles with sides a,b,c, a<b<c, a+b+c=n such that a,b,c are pairwise relatively prime. 0
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 2, 0, 2, 1, 1, 1, 5, 1, 2, 3, 5, 2, 8, 1, 5, 2, 5, 3, 12, 2, 7, 6, 12, 4, 16, 4, 12, 5, 11, 5, 22, 6, 16, 9, 18, 5, 25, 8, 20, 9, 18, 8, 39, 10, 22, 17, 29, 12, 42, 11, 32, 15, 37, 11, 49, 9, 32, 22, 41, 15, 58, 12, 48, 19, 41, 18, 73, 19, 46, 30, 58, 22, 86, 20 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,18

LINKS

Table of n, a(n) for n=1..91.

CROSSREFS

Sequence in context: A236627 A116664 A295672 * A035156 A063883 A079691

Adjacent sequences:  A024158 A024159 A024160 * A024162 A024163 A024164

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified March 26 20:47 EDT 2019. Contains 321535 sequences. (Running on oeis4.)