A137118 Numbers k such that k and k^2 use only the digits 2, 6, 7, 8 and 9.

26, 27, 277, 826, 887, 2826, 8826, 8887, 9286, 27886, 29626, 29777, 79286, 88277, 269777, 277267, 286827, 298826, 299827, 792267, 828667, 829626, 989277, 989286, 989887, 2772667, 2772886, 2792667, 2877886, 2962767, 2982767, 7922687, 8227267, 8299277, 8768676, 8829886, 8872867, 9629626, 9898626, 9989886, 26267826, 27689886, 27926667

Offset

1,1

Comments

Generated with DrScheme.

Links

Jonathan Wellons, Table of n, a(n) for n = 1..341

J. Wellons, Tables of Shared Digits [archived]

Example

962796929626767^2 = 926977927698729726989922872289.

Crossrefs

Sequence in context: A042392 A136923 A042394 * A137119 A042396 A042398

Adjacent sequences: A137115 A137116 A137117 * A137119 A137120 A137121

Keyword

base,nonn,changed

Author

Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008

Status

approved