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 A106410 Length of side opposite the lesser of the two angles, one being the double of the other, of a primitive integer-sided triangle, sorted on perimeter(A106499). 10
 4, 9, 9, 16, 25, 16, 25, 36, 25, 49, 25, 49, 64, 49, 36, 81, 49, 64, 81, 49, 100, 49, 64, 121, 81, 100, 121, 81, 144, 64, 121, 169, 121, 81, 169, 121, 196, 81, 100, 169, 121, 144, 225, 169, 121, 196, 225, 100, 169, 256, 121, 144, 169, 121, 196, 289, 225, 169, 256, 121 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS FORMULA a(n) = A106500(n)^2. MATHEMATICA sol[p_] := Solve[1 < r < s < 2 r && p == r s + s^2 && GCD[r, s] == 1, {r, s}, Integers]; Reap[For[p = 1, p <= 1000, p++, sp = sol[p]; If[sp =!= {}, Print[r^2 /. sp[[1]]]; Sow[r^2 /. sp[[1]]]]]][[2, 1]] (* Jean-François Alcover, Mar 07 2020 *) CROSSREFS Cf. A106499-A106506, A106420, A106430. Sequence in context: A250126 A186887 A140978 * A065737 A014719 A139417 Adjacent sequences:  A106407 A106408 A106409 * A106411 A106412 A106413 KEYWORD nonn AUTHOR Lekraj Beedassy and Ray Chandler, May 09 2005 STATUS approved

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Last modified May 9 19:47 EDT 2021. Contains 343746 sequences. (Running on oeis4.)