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A053963 Squares composed of digits {4,7,8}. 2
4, 484, 784, 7744, 7478444484, 8878844747774884, 84788447488748874848488744487874447844, 484844884744844787448744774844887478884 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..8.

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

H. Mishima Squares consisted of 3 different digits [From Max Alekseyev, Mar 10 2009]

CROSSREFS

Cf. A053962.

Sequence in context: A035483 A145570 A053292 * A053941 A027678 A058442

Adjacent sequences:  A053960 A053961 A053962 * A053964 A053965 A053966

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Mar 15 2000

EXTENSIONS

Two more terms from Mishima's page added by Max Alekseyev, Mar 10 2009

STATUS

approved

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Last modified June 1 18:43 EDT 2020. Contains 334762 sequences. (Running on oeis4.)