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Search: id:A053909
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A053909 Squares composed of digits {1,6,8}. +0
3
1, 16, 81, 1681, 11881, 1666681, 818188816, 6168688681, 6661661161, 611686666816, 1111166866161, 11168168618161, 18886681666161, 666868181611681, 866686868686116, 16668111611611681, 668881818661618116 (list; graph; listen)
OFFSET

1,2
LINKS

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

CROSSREFS

Cf. A053908.

Sequence in context: A046453 A030514 A056571 this_sequence A151502 A030693 A159501

Adjacent sequences: A053906 A053907 A053908 this_sequence A053910 A053911 A053912

KEYWORD

nonn,base

AUTHOR

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

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Last modified December 5 17:24 EST 2009. Contains 170342 sequences.

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