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 1-2 of 2 results.

A152306 a(n) = floor(log(2)*((1 + sqrt(3))/2)^n) mod 10.

Original entry on oeis.org

0, 0, 1, 1, 2, 3, 4, 6, 8, 1, 5, 1, 9, 9, 4, 4, 1, 9, 0, 9, 4, 4, 2, 4, 5, 7, 5, 9, 2, 6, 7, 5, 9, 2, 2, 4, 0, 2, 2, 8, 5, 4, 7, 9, 8, 3, 8, 4, 9, 1, 6, 1, 4, 5, 3, 0, 7, 2, 6, 3, 6, 8, 1, 5, 1, 3, 9, 6, 0, 9, 9, 8, 3, 8, 5, 9, 1, 1, 7, 7, 1, 5, 5, 8, 6, 5, 3, 6, 8, 1, 0, 0, 6, 6, 9, 8, 2, 2, 8, 9, 8
Offset: 0

Views

Author

Roger L. Bagula, Dec 02 2008

Keywords

Crossrefs

Cf. A125895.

Programs

  • Mathematica
    a[n_] = Log[2]*((1 + Sqrt[3])/2)^n;
    Table[Mod[Floor[a[n]], 10], {n, 0, 100}]

A239311 a(n) = floor(((1+sqrt(n))/2)^n).

Original entry on oeis.org

1, 1, 1, 2, 5, 11, 26, 66, 180, 512, 1524, 4734, 15291, 51200, 177256, 633102, 2328306, 8801492, 34147724, 135789397, 552761344, 2300896695, 9783811169, 42459259013, 187899387609, 847288609443, 3890278628308, 18175510564018, 86354070880785, 416985884011492
Offset: 0

Views

Author

Jon Perry, Mar 15 2014

Keywords

Crossrefs

Cf. A125895.

Programs

  • Mathematica
    Table[Floor[((1 + Sqrt[n])/2)^n], {n, 0, 30}] (* Giovanni Resta, Mar 15 2014 *)
Showing 1-2 of 2 results.