A106500 Values r associated with A106499.

2, 3, 3, 4, 5, 4, 5, 6, 5, 7, 5, 7, 8, 7, 6, 9, 7, 8, 9, 7, 10, 7, 8, 11, 9, 10, 11, 9, 12, 8, 11, 13, 11, 9, 13, 11, 14, 9, 10, 13, 11, 12, 15, 13, 11, 14, 15, 10, 13, 16, 11, 12, 13, 11, 14, 17, 15, 13, 16, 11, 17, 18, 13, 17, 13, 16, 19, 17, 12, 15, 13, 19, 14, 17, 20, 15, 13, 16, 19

Offset: 1

Author

Lekraj Beedassy, May 04 2005

Keywords

• nonn

Crossrefs

Cf. A106499-A106506, A106410, A106420, A106430.

Programs

Mathematica

s[p_] := Solve[1 < r < s < 2r && p == r s + s^2 && GCD[r, s] == 1, {r, s}, Integers];
Reap[For[p = 1, p <= 2000, p++, sp = s[p]; If[sp =!= {}, Print[r /. sp[[1]] ]; Sow[r /. sp[[1]]]]]][[2, 1]] (* Jean-François Alcover, Mar 06 2020 *)

Extensions

Extended by Ray Chandler, May 09 2005