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 1-10 of 10 results.

A212454 Ceiling(5n + log(5n)).

Original entry on oeis.org

7, 13, 18, 23, 29, 34, 39, 44, 49, 54, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 156, 161, 166, 171, 176, 181, 186, 191, 196, 201, 206, 211, 216, 221, 226, 231, 236, 241, 246, 251, 256, 261, 266, 271, 276, 281
Offset: 1

Views

Author

Mohammad K. Azarian, May 17 2012

Keywords

Links

Crossrefs

Cf. A000523, A062153, A102572, A212445-A212453.

Programs

  • Magma
    [Ceiling(5*n + Log(5*n)): n in [1..80]]; // Vincenzo Librandi, Feb 14 2013
  • Mathematica
    Table[Ceiling[5*n + Log[5*n]], {n, 100}] (* T. D. Noe, May 21 2012 *)

A212453 a(n) = ceiling(4n + log(4n)).

Original entry on oeis.org

6, 11, 15, 19, 23, 28, 32, 36, 40, 44, 48, 52, 56, 61, 65, 69, 73, 77, 81, 85, 89, 93, 97, 101, 105, 109, 113, 117, 121, 125, 129, 133, 137, 141, 145, 149, 153, 158, 162, 166, 170, 174, 178, 182, 186, 190, 194, 198, 202, 206, 210, 214, 218, 222, 226, 230
Offset: 1

Views

Author

Mohammad K. Azarian, May 17 2012

Keywords

Links

Crossrefs

Cf. A000523, A062153, A102572, A212445-A212454.

Programs

  • Magma
    [Ceiling(4*n + Log(4*n)): n in [1..80]]; // Vincenzo Librandi, Feb 14 2013
  • Mathematica
    Table[Ceiling[4*n + Log[4*n]], {n, 100}] (* T. D. Noe, May 21 2012 *)

A212451 Ceiling(2n + log(2n)).

Original entry on oeis.org

3, 6, 8, 11, 13, 15, 17, 19, 21, 23, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129
Offset: 1

Views

Author

Mohammad K. Azarian, May 17 2012

Keywords

Links

Crossrefs

Cf. A000523, A062153, A102572, A212445-A212454.

Programs

  • Magma
    [Ceiling(2*n + Log(2*n)): n in [1..80]]; // Vincenzo Librandi, Feb 14 2013
  • Mathematica
    Table[Ceiling[2*n + Log[2*n]], {n, 100}] (* T. D. Noe, May 21 2012 *)

A212452 Ceiling(3n + log(3n)).

Original entry on oeis.org

5, 8, 12, 15, 18, 21, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98, 101, 104, 107, 110, 113, 116, 119, 122, 125, 128, 131, 134, 137, 140, 143, 146, 149, 152, 156, 159, 162, 165, 168, 171, 174, 177, 180
Offset: 1

Views

Author

Mohammad K. Azarian, May 17 2012

Keywords

Links

Crossrefs

Cf. A000523, A062153, A102572, A212445-A212454.

Programs

  • Magma
    [Ceiling(3*n + Log(3*n)): n in [1..80]]; // Vincenzo Librandi, Feb 14 2013
  • Mathematica
    Table[Ceiling[3*n + Log[3*n]], {n, 100}] (* T. D. Noe, May 21 2012 *)

A212446 Floor(2n + log(2n)).

Original entry on oeis.org

2, 5, 7, 10, 12, 14, 16, 18, 20, 22, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128
Offset: 1

Views

Author

Mohammad K. Azarian, May 17 2012

Keywords

Links

Crossrefs

Cf. A000523, A062153, A102572, A212445, A212447, A212448, A212449, A212450, A212451, A212452, A212453, A212454.

Programs

A212447 a(n) = floor(3n + log(3n)).

Original entry on oeis.org

4, 7, 11, 14, 17, 20, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97, 100, 103, 106, 109, 112, 115, 118, 121, 124, 127, 130, 133, 136, 139, 142, 145, 148, 151, 155, 158, 161, 164, 167, 170, 173, 176, 179
Offset: 1

Views

Author

Mohammad K. Azarian, May 17 2012

Keywords

Links

Crossrefs

Cf. A000523, A062153, A102572, A212445, A212446, A212448, A212449, A212450, A212451, A212452, A212453, A212454.

Programs

A212448 Floor(4n + log(4n)).

Original entry on oeis.org

5, 10, 14, 18, 22, 27, 31, 35, 39, 43, 47, 51, 55, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152, 157, 161, 165, 169, 173, 177, 181, 185, 189, 193, 197, 201, 205, 209, 213, 217, 221, 225, 229
Offset: 1

Views

Author

Mohammad K. Azarian, May 17 2012

Keywords

Links

Crossrefs

Cf. A000523, A062153, A102572, A212445, A212446, A212447, A212449, A212450, A212451, A212452, A212453, A212454.

Programs

A212449 Floor(5n + log(5n)).

Original entry on oeis.org

6, 12, 17, 22, 28, 33, 38, 43, 48, 53, 59, 64, 69, 74, 79, 84, 89, 94, 99, 104, 109, 114, 119, 124, 129, 134, 139, 144, 149, 155, 160, 165, 170, 175, 180, 185, 190, 195, 200, 205, 210, 215, 220, 225, 230, 235, 240, 245, 250, 255, 260, 265, 270, 275, 280, 285
Offset: 1

Views

Author

Mohammad K. Azarian, May 17 2012

Keywords

Links

Crossrefs

Cf. A000523, A062153, A102572, A212445, A212446, A212447, A212448, A212450, A212451, A212452, A212453, A212454.

Programs

A212450 a(n) = ceiling(n + log(n)).

Original entry on oeis.org

1, 3, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71
Offset: 1

Views

Author

Mohammad K. Azarian, May 17 2012

Keywords

Links

Crossrefs

Cf. A000523, A062153, A102572, A212445, A212446, A212447, A212448, A212449, A212451, A212452, A212453, A212454.

Programs

  • Magma
    [Ceiling(n + Log(n)): n in [1..80]]; // Vincenzo Librandi, Feb 14 2013
  • Mathematica
    Table[Ceiling[n + Log[n]], {n, 100}] (* T. D. Noe, May 21 2012 *)

A045650 Numbers that cannot be expressed as k + floor(log(k)) where k is an integer.

Original entry on oeis.org

3, 9, 23, 58, 153, 409, 1103, 2988, 8112, 22036, 59885, 162766, 442426, 1202618, 3269032, 8886126, 24154969, 65659987, 178482319, 485165215, 1318815755, 3584912868, 9744803469, 26489122153, 72004899362, 195729609454
Offset: 1

Views

Author

David W. Wilson

Keywords

Comments

Complement of A212445. - Michel Marcus, Jun 30 2015

Crossrefs

Cf. A212445, A000149.

Programs

Formula

Conjecture: lim n->infinity a(n) = e^n. - Ron R. King, Nov 10 2006
a(n) = floor(e^n) + n. - Nurdin N. Takenov (greanvert(AT)gmail.com), Mar 10 2007

Extensions

a(18) onward corrected by Sean A. Irvine, Mar 17 2021
Showing 1-10 of 10 results.

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