A292637 Rank of (3+r)*n when all the numbers (3-r)*j and (3+r)*k, where r = sqrt(2), j>=1, k>=1, are jointly ranked.

3, 7, 11, 15, 18, 22, 26, 30, 34, 37, 41, 45, 49, 52, 56, 60, 64, 68, 71, 75, 79, 83, 87, 90, 94, 98, 102, 105, 109, 113, 117, 121, 124, 128, 132, 136, 139, 143, 147, 151, 155, 158, 162, 166, 170, 174, 177, 181, 185, 189, 192, 196, 200, 204, 208, 211, 215

Offset

1,1

Links

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

Mathematica

z = 120; r = 3 - Sqrt[2]; s = 3 + Sqrt[2];
Table[n + Floor[n*r/s], {n, 1, z}]  (* A292636 *)
Table[n + Floor[n*s/r], {n, 1, z}]  (* A292637 *)

Prog

(PARI) vector(100, n, n + floor(n*(3+sqrt(2))/(3-sqrt(2)))) \\ G. C. Greubel, Aug 20 2018
(Magma) [n + Floor(n*(3+Sqrt(2))/(3-Sqrt(2))): n in [1..100]]; // G. C. Greubel, Aug 20 2018

Crossrefs

Cf. A292636 (complement).

Sequence in context: A285497 A079710 A145832 * A279608 A322408 A124981

Adjacent sequences: A292634 A292635 A292636 * A292638 A292639 A292640

Keyword

nonn,easy

Author

Clark Kimberling, Sep 23 2017

Status

approved