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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A083883 Odd short leg of more than one primitive Pythagorean triangle. 2

%I #11 Jan 22 2020 10:25:26

%S 33,39,51,57,65,69,75,85,87,93,95,105,111,115,119,123,129,133,135,141,

%T 145,147,155,159,161,165,175,177,183,185,189,195,201,203,205,207,213,

%U 215,217,219,225,231,235,237,245,249,255,259,261,265,267,273,279,285

%N Odd short leg of more than one primitive Pythagorean triangle.

%H Ray Chandler, <a href="/A083883/b083883.txt">Table of n, a(n) for n = 1..10000</a>

%t Take[Transpose[Select[Tally[Transpose[Union[Sort/@({Times@@#,(Last[#]^2- First[#]^2)/2}&/@(Select[Subsets[Range[1,501,2],{2}],GCD@@#==1&]))]][[1]]], OddQ[#[[1]]]&&#[[2]]>1&]][[1]],60] (* _Harvey P. Dale_, May 28 2015 *)

%Y Cf. A081874.

%K nonn

%O 1,1

%A _Lekraj Beedassy_, Jun 18 2003

%E Corrected and extended by _Ray Chandler_, Oct 29 2003

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 13:40 EDT 2024. Contains 371792 sequences. (Running on oeis4.)