A070133 - OEIS

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A070133

Numbers n such that [A070080(n), A070081(n), A070082(n)] is an obtuse isosceles integer triangle.

3

5, 14, 26, 32, 52, 61, 82, 91, 104, 118, 133, 146, 163, 182, 202, 219, 242, 246, 266, 291, 314, 342, 347, 372, 404, 432, 437, 467, 472, 504, 542, 547, 577, 582, 619, 625, 663, 709, 714, 751, 757, 801, 807, 853, 858, 907, 913

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

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..47.

R. Zumkeller, Integer-sided triangles

EXAMPLE

a(5)=52: [A070080(52), A070081(52), A070082(52)]=[5=5<8], A070085(52)=5^2+5^2-8^2=25+25-64=-14<0.

CROSSREFS

Cf. A070106, A070134, A070135, A070115, A070127.

Sequence in context: A018829 A332623 A375289 * A246517 A306886 A202821

Adjacent sequences: A070130 A070131 A070132 * A070134 A070135 A070136

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, May 05 2002

STATUS

approved