login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A187392 Floor(s*n), where s=1+sqrt(8)-sqrt(7); complement of A189391. 2
1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 39, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50, 52, 53, 54, 55, 56, 57, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 72, 73, 74, 75, 76, 78, 79, 80, 81, 82, 83, 85, 86, 87, 88, 89, 91, 92, 93, 94, 95, 96, 98, 99, 100, 101, 102, 104, 105, 106, 107, 108, 109, 111, 112, 113, 114, 115, 117, 118 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A187391 and A187392 are the Beatty sequences based on r=1+sqrt(8)+sqrt(7) and s=1+sqrt(8)-sqrt(7); 1/r+1/s=1.

LINKS

Table of n, a(n) for n=1..100.

FORMULA

a(n)=floor(s*n), where s=1+sqrt(8)-sqrt(7).

MATHEMATICA

k=8; r=1+k^(1/2)+(k-1)^(1/2); s=1+k^(1/2)-(k-1)^(1/2);

Table[Floor[r*n], {n, 1, 80}]  (* A187391 *)

Table[Floor[s*n], {n, 1, 80}]  (* A187392 *)

With[{c=1+Sqrt[8]-Sqrt[7]}, Floor[c*Range[100]]] (* Harvey P. Dale, Mar 04 2015 *)

CROSSREFS

Cf. A187391.

Sequence in context: A286926 A145198 A083210 * A232741 A108120 A108586

Adjacent sequences:  A187389 A187390 A187391 * A187393 A187394 A187395

KEYWORD

nonn

AUTHOR

Clark Kimberling, Mar 09 2011

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 March 25 22:28 EDT 2019. Contains 321477 sequences. (Running on oeis4.)