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Search: id:A053913
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A053913 Squares composed of digits {1,7,8}. +0
3
1, 81, 11881, 78881777881, 11187111187877881, 77878887787187881 (list; graph; listen)
OFFSET

1,2

LINKS

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

CROSSREFS

Cf. A053912.

Sequence in context: A059988 A017020 A058422 this_sequence A053895 A053905 A143005

Adjacent sequences: A053910 A053911 A053912 this_sequence A053914 A053915 A053916

KEYWORD

nonn,base,more

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Mar 15 2000.

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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