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.

A276191 Sum of the squares of the digits of the base-5 representation of n.

Original entry on oeis.org

0, 1, 4, 9, 16, 1, 2, 5, 10, 17, 4, 5, 8, 13, 20, 9, 10, 13, 18, 25, 16, 17, 20, 25, 32, 1, 2, 5, 10, 17, 2, 3, 6, 11, 18, 5, 6, 9, 14, 21, 10, 11, 14, 19, 26, 17, 18, 21, 26, 33, 4, 5, 8, 13, 20, 5, 6, 9, 14, 21, 8, 9, 12, 17, 24, 13, 14, 17, 22, 29, 20, 21, 24, 29, 36, 9, 10, 13, 18, 25, 10
Offset: 0

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Author

R. J. Mathar, Aug 24 2016

Keywords

Crossrefs

Cf. A000120 (base 2), A006287 (base 3), A276190 (base 4).

Programs

  • Maple
    A276191 := proc(n)
        local d ;
        add(d^2, d= convert(n, base, 5) );
    end proc:
  • Mathematica
    Table[Total[IntegerDigits[n,5]^2],{n,0,80}] (* Harvey P. Dale, Aug 15 2017 *)