The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A070131 Numbers n such that [A070080(n), A070081(n), A070082(n)] is an obtuse scalene integer triangle with relatively prime side lengths. 7
 8, 13, 20, 21, 25, 29, 30, 36, 37, 41, 42, 44, 49, 56, 57, 59, 62, 66, 67, 69, 74, 75, 77, 78, 79, 80, 86, 89, 96, 97, 99, 100, 101, 102, 105, 110, 111, 113, 115, 122, 123, 125, 126, 127, 128, 130, 131, 138, 141, 144, 147, 152, 153 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS R. Zumkeller, Integer-sided triangles EXAMPLE a(20)=69: [A070080(69), A070081(69), A070082(69)]=[5<6<9], A070084(69)=gcd(5,6,9)=1, A070085(69)=5^2+6^2-9^2=25+36-81=-20<0. CROSSREFS Cf. A070104, A070110, A070127, A070112. Sequence in context: A214723 A022954 A070130 * A030782 A219721 A176209 Adjacent sequences:  A070128 A070129 A070130 * A070132 A070133 A070134 KEYWORD nonn AUTHOR Reinhard Zumkeller, May 05 2002 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 29 17:30 EDT 2022. Contains 354913 sequences. (Running on oeis4.)