This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A096891 Least hypotenuse of primitive Pythagorean triangles with odd leg 2n+1. 15
 5, 13, 25, 41, 61, 85, 17, 145, 181, 29, 265, 313, 365, 421, 481, 65, 37, 685, 89, 841, 925, 53, 1105, 1201, 149, 1405, 73, 185, 1741, 1861, 65, 97, 2245, 269, 2521, 2665, 317, 85, 3121, 3281, 3445, 157, 425, 3961, 109, 485, 193, 4705, 101, 5101, 5305, 137 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Ordered terms are A020882. - Paul Curtz, Sep 08 2008 Least value of x^2 + y^2 with gcd(x,y) = 1 such that y^2 - x^2 = 2n+1. - Thomas Ordowski, Apr 02 2017 LINKS MATHEMATICA f[n_] := Block[{k = 2}, While[c = Sqrt[(2n + 1)^2 + k^2]; ! IntegerQ@ c || GCD[2n + 1, c, k] > 1, k += 2]; c]; Array[f, 52] (* Robert G. Wilson v, Mar 18 2014 *) CROSSREFS Cf. A020882, A088557, A088558, A096891, A096892, A096893, A096894, A096895, A096896, A096897, A096898, A096899, A096900. Sequence in context: A248160 A098972 A081961 * A001844 A099776 A301302 Adjacent sequences:  A096888 A096889 A096890 * A096892 A096893 A096894 KEYWORD nonn AUTHOR Ray Chandler, Jul 14 2004 STATUS approved

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

Last modified September 16 06:48 EDT 2019. Contains 327090 sequences. (Running on oeis4.)