cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-3 of 3 results.

A059544 Beatty sequence for log(3)/(log(3)-1).

Original entry on oeis.org

11, 22, 33, 44, 55, 66, 77, 89, 100, 111, 122, 133, 144, 155, 167, 178, 189, 200, 211, 222, 233, 245, 256, 267, 278, 289, 300, 311, 323, 334, 345, 356, 367, 378, 389, 401, 412, 423, 434, 445, 456, 467, 479, 490, 501, 512, 523, 534, 545, 557, 568, 579, 590
Offset: 1

Views

Author

Mitch Harris, Jan 22 2001

Keywords

Crossrefs

Beatty complement is A059543.

Programs

  • Mathematica
    With[{c=Log[3]/(Log[3]-1)},Floor[c #]&/@Range[60]] (* Harvey P. Dale, Feb 10 2019 *)
  • PARI
    { default(realprecision, 100); b=log(3)/(log(3) - 1); for (n = 1, 2000, write("b059544.txt", n, " ", floor(n*b)); ) } \\ Harry J. Smith, Jun 28 2009

Formula

a(n) = floor(n*log(3)/(log(3)-1)). - Michel Marcus, Jan 05 2015

A325752 First term of n-th difference sequence of (floor(r*k)), r = log(3), k >= 0.

Original entry on oeis.org

1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -11, 66, -286, 1001, -3003, 8008, -19448, 43758, -92378, 184757, -352737, 646877, -1145837, 1971882, -3321890, 5541965, -9324315, 16231215, -30045015, 60090031, -129024511, 290305576, -665732936, 1523150156, -3431847188
Offset: 1

Views

Author

Clark Kimberling, Jun 07 2019

Keywords

Crossrefs

Programs

  • Mathematica
    Table[First[Differences[Table[Floor[n*Log[3]], {n, 0, 50}], n]], {n, 1, 50}]

A265133 Beatty sequence for log(2).

Original entry on oeis.org

0, 1, 2, 2, 3, 4, 4, 5, 6, 6, 7, 8, 9, 9, 10, 11, 11, 12, 13, 13, 14, 15, 15, 16, 17, 18, 18, 19, 20, 20, 21, 22, 22, 23, 24, 24, 25, 26, 27, 27, 28, 29, 29, 30, 31, 31, 32, 33, 33, 34, 35, 36, 36, 37, 38, 38, 39, 40, 40, 41, 42, 42, 43, 44, 45, 45, 46, 47, 47, 48, 49, 49, 50, 51, 51, 52, 53, 54, 54, 55
Offset: 1

Views

Author

Ilya Gutkovskiy, Dec 02 2015

Keywords

Crossrefs

Programs

  • Magma
    [Floor(n*Log(2)): n in [1..100]]; // Vincenzo Librandi, Dec 03 2015
  • Mathematica
    Table[Floor[Log[2] n], {n, 1, 80}]
  • PARI
    a(n) = floor(n*log(2)); \\ Altug Alkan, Dec 02 2015
    

Formula

a(n) = floor(n*log(2)).
a(n) = A059541(n) - n.
Showing 1-3 of 3 results.