A137047 - OEIS

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A137047

Numbers k such that k and k^2 use only the digits 1, 4, 5, 6 and 8.

1, 4, 8, 41, 81, 816, 6441, 6454, 11881, 64466, 64546, 641441, 644581, 684581, 6454581, 8114466, 11881141, 64541141, 64661881, 66448884, 68444641, 81556184, 644658684, 644861881, 644868641, 646618641, 664414454, 664564184, 681585546, 811488858, 815141488, 6414448884, 6445668816, 6448618546, 6644141541, 64465581141, 64548885884

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Generated with DrScheme.

LINKS

Jonathan Wellons, Table of n, a(n) for n = 1..128

J. Wellons, Tables of Shared Digits [archived]

EXAMPLE

684588684456184^2 = 468661666885448664651815841856.

CROSSREFS

Sequence in context: A303566 A165622 A162076 * A137052 A111411 A137054

Adjacent sequences: A137044 A137045 A137046 * A137048 A137049 A137050

KEYWORD

base,nonn

AUTHOR

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

STATUS

approved