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A137124 Numbers k such that k and k^2 use only the digits 3, 4, 5, 7 and 8. 1

%I #7 Apr 12 2024 09:51:27

%S 88,588,888,7378,7588,8588,74388,88588,738538,743878,745478,747378,

%T 758588,5878388,7338588,7448878,7573538,8878878,57843538,73385888,

%U 73877438,73883588,75745478,75784878,88534388,578573538,733878388,757544438,7384753588,7575344438,7587775588,8575883388,57773588588,73738374388,74534384538

%N Numbers k such that k and k^2 use only the digits 3, 4, 5, 7 and 8.

%C Generated with DrScheme.

%H Jonathan Wellons, <a href="/A137124/b137124.txt">Table of n, a(n) for n = 1..80</a>

%H J. Wellons, <a href="https://web.archive.org/web/20090206165028/http://jonathanwellons.com/shared-digits/">Tables of Shared Digits</a> [archived]

%e 857585875778388^2 = 735453534334584733744887878544.

%K base,nonn

%O 1,1

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

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Last modified August 5 05:17 EDT 2024. Contains 374935 sequences. (Running on oeis4.)