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A089552 Sum of legs of primitive Pythagorean triangles having legs that add up to a square, sorted on hypotenuse. 18
49, 289, 529, 961, 2209, 1681, 2401, 5041, 5329, 6241, 7921, 9409, 12769, 10609, 14161, 14161, 16129, 18769, 22801, 25921, 25921, 27889, 36481, 39601, 37249, 47089, 47089, 54289, 49729, 58081, 69169, 73441, 66049, 57121, 78961, 82369 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
terms = 1000; jmax = 100; kmax = 200;
Reap[Do[If[CoprimeQ[j, k], e = j^2 - j k + k^2/2; f = j k; If[e > f, Sow[{e^2 + f^2, (j^2 - k^2/2)^2}]]], {j, 1, jmax}, {k, 2, kmax, 2}]][[2, 1]] // Sort // #[[;; terms, 2]]& (* Jean-François Alcover, Mar 05 2020 *)
CROSSREFS
Sequence in context: A239211 A198437 A144407 * A017354 A239607 A227079
KEYWORD
nonn
AUTHOR
Ray Chandler, Nov 16 2003
STATUS
approved

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Last modified July 18 12:17 EDT 2024. Contains 374378 sequences. (Running on oeis4.)