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A027679 When squared gives number composed of digits {2,4,8} with each of these digits appearing at least once. 1

%I

%S 168,478,2878,210912978,15647628653832,1511583350076478,

%T 6548620039541478,669644852476481662,20597146608802018338,

%U 53710727465081333454522,2069416058768323727702022

%N When squared gives number composed of digits {2,4,8} with each of these digits appearing at least once.

%H P. De Geest, <a href="http://www.worldofnumbers.com/threedigits.htm">Squares containing at most three distinct digits, Index entries for related sequences</a>

%H P. De Geest, <a href="http://www.worldofnumbers.com/square.htm">Palindromic Squares</a>

%H H. Mishima, <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/math02/math0210.htm#248">Squares consisted of 3 different digits</a>.

%H A. Ottens, <a href="http://einstein.et.tudelft.nl/~arlet/puzzles/sol.cgi/arithmetic/digits/squares/three.digits">The arithmetic-digits-squares-three.digits problem</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/SquareNumber.html">Square Number.</a>

%Y Cf. A027678.

%K nonn,base

%O 1,1

%A _Patrick De Geest_

%E One more term from _Jon E. Schoenfield_, Sep 04 2006

%E More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), May 19 2007

%E Title improved by _Sean A. Irvine_, Nov 24 2019

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Last modified June 18 17:32 EDT 2021. Contains 345120 sequences. (Running on oeis4.)