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Search: id:A027678
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| A027678 |
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Squares composed of digits {2,4,8}. |
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+0
4
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| 4, 484, 28224, 228484, 8282884, 44484284288828484, 244848282488224248488284224
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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6 more terms are given at http://www.asahi-net.or.jp/~KC2H-MSM/mathland/math02/math0210.htm#248 (but they may not be the next terms). - Jon E. Schoenfield (jonscho(AT)hiwaay.net), Sep 04 2006
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REFERENCES
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Ilan Vardi, Computational Recreations in Mathematica, Chapter 2, Exercise 2.2.
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LINKS
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P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences
P. De Geest, Palindromic Squares
A. Ottens, The arithmetic-digits-squares-three.digits problem
T. Sillke, What square consists entirely of three digits(e.g. 2,4 and 8)?
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
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CROSSREFS
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Cf. A027679.
Sequence in context: A053292 A053963 A053941 this_sequence A058442 A075411 A114763
Adjacent sequences: A027675 A027676 A027677 this_sequence A027679 A027680 A027681
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KEYWORD
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nonn,base,more
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AUTHOR
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Patrick De Geest (pdg(AT)worldofnumbers.com)
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EXTENSIONS
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One more term from Jon E. Schoenfield (jonscho(AT)hiwaay.net), Sep 04 2006
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