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A053913 Squares composed of digits {1,7,8}. 2
1, 81, 11881, 78881777881, 11187111187877881, 77878887787187881 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..6.

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

CROSSREFS

Cf. A053912.

Sequence in context: A237027 A185847 A058422 * A053895 A053905 A184690

Adjacent sequences:  A053910 A053911 A053912 * A053914 A053915 A053916

KEYWORD

nonn,base,more

AUTHOR

Patrick De Geest, Mar 15 2000

STATUS

approved

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Last modified August 13 16:07 EDT 2022. Contains 356107 sequences. (Running on oeis4.)