A070119 - OEIS

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A070119

Numbers n such that [A070080(n), A070081(n), A070082(n)] is an acute integer triangle with relatively prime side lengths.

4

1, 2, 4, 6, 7, 11, 12, 15, 16, 19, 22, 23, 27, 28, 33, 35, 39, 40, 43, 45, 46, 47, 51, 53, 55, 58, 60, 63, 64, 65, 70, 72, 73, 81, 83, 88, 90, 92, 94, 95, 98, 103, 106, 107, 108, 109, 114, 119, 121, 124, 132, 134, 135, 136, 140, 142, 148

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..57.

R. Zumkeller, Integer-sided triangles

EXAMPLE

a(15)=33: [A070080(33), A070081(33), A070082(33)]=[4,5,6], A070084(33)=gcd(4,5,6)=1, A070085(33)=4^2+5^2-6^2=16+25-36=5>0.

CROSSREFS

Cf. A070094, A070122, A070125, A070118, A070110.

Sequence in context: A190206 A189287 A189128 * A070125 A328068 A263084

Adjacent sequences: A070116 A070117 A070118 * A070120 A070121 A070122

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, May 05 2002

STATUS

approved