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Search: id:A058421
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A058421 Numbers n such that n^2 contains only digits {0,1,8}, not ending with zero. +0
2
1, 9, 109, 901, 1009, 9001, 10009, 10401, 90001, 100009, 100901, 900001, 1000009, 1004001, 8954391, 9000001, 10000009, 10009001, 34351141, 90000001, 100000009, 100040001, 900000001, 1000000009, 1000090001, 3163554991, 9000000001 (list; graph; listen)
OFFSET

1,2

LINKS

P. De Geest, Index to related sequences

Hisanori Mishima, Sporadic tridigital solutions

CROSSREFS

Cf. A058422.

Adjacent sequences: A058418 A058419 A058420 this_sequence A058422 A058423 A058424

Sequence in context: A051606 A001691 A166846 this_sequence A128876 A105974 A053912

KEYWORD

nonn,base

AUTHOR

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

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Last modified November 7 16:45 EST 2009. Contains 166093 sequences.


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