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Search: id:A030175
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| A030175 |
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When squared gives number composed of digits {1,2,3}. |
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+0
4
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| 1, 11, 111, 36361, 363639, 461761, 3636361, 34815389, 362397739, 176412364139, 57637950363639, 3497458093147239, 56843832676142723489, 557963558954625926861
(list; graph; listen)
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OFFSET
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0,2
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LINKS
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Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences
Author?, Source(txt)
Hisanori Mishima, Sporadic tridigital solutions
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MATHEMATICA
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Do[ If[ Union[ Join[{1, 2, 3}, IntegerDigits[n^2] ] ] == {1, 2, 3}, Print[n] ], {n, 0, 10^9}]
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CROSSREFS
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Cf. A030174.
Sequence in context: A131293 A108047 A144784 this_sequence A058949 A075842 A037535
Adjacent sequences: A030172 A030173 A030174 this_sequence A030176 A030177 A030178
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KEYWORD
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nonn,base
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AUTHOR
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Patrick De Geest (pdg(AT)worldofnumbers.com)
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EXTENSIONS
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More terms from author 03/2000.
More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 14 2005
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