A292638 Rank of (3-r)*n when all the numbers (3-r)*j and (3+r)*k, where r = sqrt(5), j>=1, k>=1, are jointly ranked.

1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 37, 38, 40, 41, 42, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 55, 56, 57, 58, 59, 60, 61, 63, 64, 65, 66, 67, 68, 69, 71, 72, 73, 74, 75, 76

Offset

1,2

Links

Clark Kimberling, Table of n, a(n) for n = 1..1000

Mathematica

z = 120; r = 3 - Sqrt[5]; s = 3 + Sqrt[5];
Table[n + Floor[n*r/s], {n, 1, z}]  (* A292638 *)
Table[n + Floor[n*s/r], {n, 1, z}]  (* A292639 *)

Crossrefs

Cf. A292639 (complement).

Sequence in context: A004777 A059561 A037474 * A000378 A335513 A367906

Adjacent sequences: A292635 A292636 A292637 * A292639 A292640 A292641

Keyword

nonn,easy

Author

Clark Kimberling, Sep 25 2017

Status

approved