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.

A291631 Numbers k such that 6 is the smallest decimal digit of k^2.

Original entry on oeis.org

26, 83, 264, 313, 824, 836, 883, 887, 937, 3114, 8167, 8813, 8887, 8937, 9417, 9833, 25824, 26264, 29614, 29626, 89324, 89437, 93637, 94863, 98336, 260167, 262617, 314113, 817863, 817924, 818333, 818474, 823887, 828667, 835386, 875614, 931117, 936417, 937383
Offset: 1

Views

Author

Colin Barker, Aug 28 2017

Keywords

Comments

9949370777987917 is the smallest number k such that the smallest decimal digit of k^2 is 7. - Chai Wah Wu, Sep 08 2017

Examples

			26 is in the sequence because 26^2 = 676, the smallest decimal digit of which is 6.
		

Crossrefs

Programs

  • Mathematica
    Select[Range[10^6], Min[IntegerDigits[#^2]]==6 &] (* Vincenzo Librandi, Sep 09 2017 *)
  • PARI
    select(k->vecmin(digits(k^2))==6, vector(1000000, k, k))