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.

A130496 Repetition of even numbers five times.

Original entry on oeis.org

0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 4, 4, 4, 4, 4, 6, 6, 6, 6, 6, 8, 8, 8, 8, 8, 10, 10, 10, 10, 10, 12, 12, 12, 12, 12, 14, 14, 14, 14, 14, 16, 16, 16, 16, 16, 18, 18, 18, 18, 18, 20, 20, 20, 20, 20, 22, 22, 22, 22, 22, 24, 24, 24, 24, 24, 26, 26, 26, 26, 26, 28, 28, 28, 28, 28, 30, 30, 30
Offset: 0

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Crossrefs

Cf. A122461.

Programs

  • Maple
    P:=proc(q) local k,n; k:=[]; for n from 0 to q do k:=[op(k),2*floor(n/5)];od; op(k); end: P(77);
  • Mathematica
    Table[#,5]&/@(2*Range[0,15])//Flatten (* Harvey P. Dale, Sep 11 2016 *)

Formula

a(n) = 2*floor(n/5).