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A106410
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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).
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10
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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
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OFFSET
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1,1
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LINKS
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FORMULA
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MATHEMATICA
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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 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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