A292641 Rank of (4+r)*n when all the numbers (4-r)*j and (4+r)*k, where r = sqrt(2), j>=1, k>=1, are jointly ranked.

3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 34, 37, 40, 43, 46, 49, 52, 55, 58, 61, 64, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 99, 102, 105, 108, 111, 114, 117, 120, 123, 126, 129, 133, 136, 139, 142, 145, 148, 151, 154, 157, 160, 163, 167, 170, 173, 176, 179, 182

Offset

1,1

Links

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

Mathematica

z = 120; r = 4 - Sqrt[2]; s = 4 + Sqrt[2];
Table[n + Floor[n*r/s], {n, 1, z}]  (* A292640 *)
Table[n + Floor[n*s/r], {n, 1, z}]  (* A292641 *)

Crossrefs

Cf. A292640 (complement).

Sequence in context: A329926 A194423 A059563 * A085126 A190083 A117124

Adjacent sequences: A292638 A292639 A292640 * A292642 A292643 A292644

Keyword

nonn,easy

Author

Clark Kimberling, Sep 26 2017

Status

approved