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Search: id:A053906
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A053906 Numbers n such that n^2 contains only digits {1,6,7}. +0
2
1, 4, 26, 131, 276, 881, 3431, 81346, 81619, 129119, 132954, 1292931424 (list; graph; listen)
OFFSET

1,2

LINKS

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

CROSSREFS

Cf. A053907.

Sequence in context: A140804 A147621 A058408 this_sequence A100236 A144068 A121767

Adjacent sequences: A053903 A053904 A053905 this_sequence A053907 A053908 A053909

KEYWORD

nonn,base,more

AUTHOR

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

EXTENSIONS

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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