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 1-4 of 4 results.

A121282 a(n) = ceiling(n*Pi*e).

Original entry on oeis.org

0, 9, 18, 26, 35, 43, 52, 60, 69, 77, 86, 94, 103, 112, 120, 129, 137, 146, 154, 163, 171, 180, 188, 197, 205, 214, 223, 231, 240, 248, 257, 265, 274, 282, 291, 299, 308, 316, 325, 334, 342, 351, 359, 368, 376, 385, 393, 402, 410, 419, 427, 436, 445, 453, 462
Offset: 0

Views

Author

Mohammad K. Azarian, Aug 24 2006

Keywords

Links

Crossrefs

Cf. A032739, A062541.

Programs

  • Mathematica
    Table[Ceiling[n Pi E], {n, 0, 80}] (* Vincenzo Librandi, Feb 22 2013 *)

Extensions

Offset corrected by Arkadiusz Wesolowski, Jun 05 2011

A001674 a(n) = floor(sqrt( 2*Pi )^n).

Original entry on oeis.org

1, 2, 6, 15, 39, 98, 248, 621, 1558, 3906, 9792, 24546, 61528, 154230, 386597, 969056, 2429063, 6088760, 15262258, 38256809, 95895600, 240374623, 602529828, 1510318305, 3785806567, 9489609784, 23786924200, 59624976768, 149457652641, 374634777972
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

Links

Crossrefs

Cf. A001674 (ceiling sqrt(2 Pi)^n), A017910 (floor sqrt(2)^n), A000149 (floor e^n), A001672 (floor Pi^n), A062541 (floor (Pi*e)^n), A121831 (floor (Pi+e)^n), A032739 (floor (Pi/e)^n), A014217 (floor ((1+sqrt(5))/2)^n).

Programs

  • Mathematica
    Table[Floor[Sqrt[2*Pi]^n], {n, 0, 50}] (* T. D. Noe, Aug 09 2012 *)
  • PARI
    a(n)=(2*Pi)^(n/2)\1 \\ M. F. Hasler, May 29 2018

Extensions

Edited by M. F. Hasler, May 29 2018

A121279 Ceiling((Pi/e)^n).

Original entry on oeis.org

1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 5, 5, 6, 7, 8, 9, 11, 12, 14, 16, 19, 21, 25, 28, 33, 38, 44, 50, 58, 67, 77, 89, 103, 119, 138, 159, 184, 212, 245, 283, 327, 378, 437, 505, 583, 674, 779, 900, 1041, 1203, 1390, 1606, 1856, 2145, 2479, 2865, 3311, 3827, 4422, 5111, 5907
Offset: 0

Views

Author

Mohammad K. Azarian, Aug 24 2006

Keywords

Links

Crossrefs

Cf. A032739, A062541.

Programs

  • Mathematica
    Table[Ceiling[(Pi/E)^n], {n, 0, 70}] (* Vincenzo Librandi, Feb 23 2013 *)

Extensions

Changed offset from 1 to 0 by Vincenzo Librandi, Feb 23 2013

A121283 a(n) = floor(n*Pi*e).

Original entry on oeis.org

0, 8, 17, 25, 34, 42, 51, 59, 68, 76, 85, 93, 102, 111, 119, 128, 136, 145, 153, 162, 170, 179, 187, 196, 204, 213, 222, 230, 239, 247, 256, 264, 273, 281, 290, 298, 307, 315, 324, 333, 341, 350, 358, 367, 375, 384, 392, 401, 409, 418, 426, 435, 444, 452, 461
Offset: 0

Views

Author

Mohammad K. Azarian, Aug 24 2006

Keywords

Links

Crossrefs

Cf. A019609, A032739, A062541.

Programs

Extensions

Offset corrected by Mohammad K. Azarian, Nov 20 2008
Changed offset from 1 to 0 by Vincenzo Librandi, Feb 22 2013
Showing 1-4 of 4 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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