A070128 Numbers n such that [A070080(n), A070081(n), A070082(n)] is an obtuse integer triangle with relatively prime side lengths.

5, 8, 13, 14, 20, 21, 25, 29, 30, 32, 36, 37, 41, 42, 44, 49, 52, 56, 57, 59, 61, 62, 66, 67, 69, 74, 75, 77, 78, 79, 80, 86, 89, 96, 97, 99, 100, 101, 102, 104, 105, 110, 111, 113, 115, 118, 122, 123, 125, 126, 127, 128, 130, 131, 133

Offset

1,1

Links

Table of n, a(n) for n=1..55.

R. Zumkeller, Integer-sided triangles

Example

a(9)=30: [A070080(30), A070081(30), A070082(30)]=[3,5,7], A070084(30)=gcd(3,5,7)=1, A070085(30)=3^2+5^2-7^2=9+25-49=-15>0.

Crossrefs

Cf. A070102, A070131, A070134, A070110, A070127.

Sequence in context: A144650 A046038 A070127 * A263263 A314420 A030606

Adjacent sequences: A070125 A070126 A070127 * A070129 A070130 A070131

Keyword

nonn

Author

Reinhard Zumkeller, May 05 2002

Status

approved