login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A292645 Rank of (6+r)*n when all the numbers (6-r)*j and (6+r)*k, where r = sqrt(2), j>=1, k>=1, are jointly ranked. 2
2, 5, 7, 10, 13, 15, 18, 20, 23, 26, 28, 31, 34, 36, 39, 41, 44, 47, 49, 52, 54, 57, 60, 62, 65, 68, 70, 73, 75, 78, 81, 83, 86, 88, 91, 94, 96, 99, 102, 104, 107, 109, 112, 115, 117, 120, 122, 125, 128, 130, 133, 136, 138, 141, 143, 146, 149, 151, 154, 157 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

z = 120; r = 6 - Sqrt[2]; s = 6 + Sqrt[2];

Table[n + Floor[n*r/s], {n, 1, z}]  (* A292644 *)

Table[n + Floor[n*s/r], {n, 1, z}]  (* A292645 *)

PROG

(PARI) vector(100, n, n+floor(n*(6+sqrt(2))/(6-sqrt(2)))) \\ G. C. Greubel, Aug 20 2018

(MAGMA) [n+Floor(n*(6+Sqrt(2))/(6-Sqrt(2))): n in [1..100]]; // G. C. Greubel, Aug 20 2018

CROSSREFS

Cf. A292644 (complement).

Sequence in context: A331833 A018717 A188036 * A001950 A090909 A330064

Adjacent sequences:  A292642 A292643 A292644 * A292646 A292647 A292648

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Sep 26 2017

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 9 08:41 EST 2021. Contains 349627 sequences. (Running on oeis4.)