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A027679 When squared gives number composed of digits {2,4,8}. 1
168, 478, 2878, 210912978, 15647628653832, 1511583350076478, 6548620039541478, 669644852476481662, 20597146608802018338, 53710727465081333454522, 2069416058768323727702022 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..11.

P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences

P. De Geest, Palindromic Squares

H. Mishima, Squares consisted of 3 different digits.

A. Ottens, The arithmetic-digits-squares-three.digits problem

Eric Weisstein's World of Mathematics, Square Number.

CROSSREFS

Cf. A027678.

Sequence in context: A210207 A303082 A247721 * A137863 A266808 A234738

Adjacent sequences:  A027676 A027677 A027678 * A027680 A027681 A027682

KEYWORD

nonn,base

AUTHOR

Patrick De Geest

EXTENSIONS

One more term from Jon E. Schoenfield, Sep 04 2006

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

STATUS

approved

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Last modified December 18 20:06 EST 2018. Contains 318245 sequences. (Running on oeis4.)