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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A172275 a(n) = floor(n*(sqrt(13)-sqrt(7))). 1
0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

MATHEMATICA

With[{c = Sqrt[13] - Sqrt[7]}, Floor[c Range[0, 80]]] (* Harvey P. Dale, Jan 22 2013 *)

PROG

(MAGMA) [Floor(n*(Sqrt(13)-Sqrt(7))): n in [0..80]]; // Vincenzo Librandi, Aug 01 2013

CROSSREFS

Cf. A172264, A172266-A172270, A172272-A172278.

Sequence in context: A323368 A080686 A036218 * A025484 A325383 A236851

Adjacent sequences:  A172272 A172273 A172274 * A172276 A172277 A172278

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Jan 30 2010

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 May 31 19:37 EDT 2020. Contains 334748 sequences. (Running on oeis4.)