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!)
A097239 Numbers n that are the hypotenuse of exactly 17 distinct integer-sided right triangles, i.e., n^2 can be written as a sum of two squares in 17 ways. 24

%I #17 Dec 30 2019 20:35:59

%S 21125,36125,42250,54925,63375,72250,84500,105125,108375,109850,

%T 122825,126750,144500,147875,164775,169000,171125,190125,210125,

%U 210250,216750,219700,232375,245650,252875,253500,289000,295750,315375,325125,329550

%N Numbers n that are the hypotenuse of exactly 17 distinct integer-sided right triangles, i.e., n^2 can be written as a sum of two squares in 17 ways.

%C If m is a term, then 2*m and p*m are terms where p is any prime of the form 4k+3. - _Ray Chandler_, Dec 30 2019

%H Ray Chandler, <a href="/A097239/b097239.txt">Table of n, a(n) for n = 1..10000</a>

%Y Cf. A004144 (0), A084645 (1), A084646 (2), A084647 (3), A084648 (4), A084649 (5), A097219 (6), A097101 (7), A290499 (8), A290500 (9), A097225 (10), A290501 (11), A097226 (12), A097102 (13), A290502 (14), A290503 (15), A097238 (16), A290504 (18), A290505 (19), A097103 (22), A097244 (31), A097245 (37), A097282 (40), A097626 (67).

%K nonn

%O 1,1

%A _James R. Buddenhagen_, Sep 17 2004

%E More terms from _Ray Chandler_, Sep 18 2004

%E Offset corrected by _Michel Marcus_, Aug 04 2017

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 18 20:26 EDT 2024. Contains 371781 sequences. (Running on oeis4.)