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A137047 Numbers k such that k and k^2 use only the digits 1, 4, 5, 6 and 8. 1

%I

%S 1,4,8,41,81,816,6441,6454,11881,64466,64546,641441,644581,684581,

%T 6454581,8114466,11881141,64541141,64661881,66448884,68444641,

%U 81556184,644658684,644861881,644868641,646618641,664414454,664564184,681585546,811488858,815141488,6414448884,6445668816,6448618546,6644141541,64465581141,64548885884

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

%C Generated with DrScheme.

%H Jonathan Wellons, <a href="/A137047/b137047.txt">Table of n, a(n) for n = 1..128</a>

%H J. Wellons, <a href="http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a>

%e 684588684456184^2 = 468661666885448664651815841856.

%K base,nonn

%O 1,2

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

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Last modified October 25 09:15 EDT 2021. Contains 348239 sequences. (Running on oeis4.)