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Search: id:A053061
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| A053061 |
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Concatenation of n and n^2. |
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+0
4
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| 11, 24, 39, 416, 525, 636, 749, 864, 981, 10100, 11121, 12144, 13169, 14196, 15225, 16256, 17289, 18324, 19361, 20400, 21441, 22484, 23529, 24576, 25625, 26676, 27729, 28784, 29841, 30900, 31961, 321024, 331089, 341156, 351225, 361296
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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Felice Russo, A set of new Smarandache functions, sequences and conjectures in number theory, American Research Press 2000
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LINKS
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M. L. Perez et al., eds., Smarandache Notions Journal
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FORMULA
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a(n)=n*(10^floor[2*log10(n)+1]+n) - Henry Bottomley (se16(AT)btinternet.com), May 18 2000
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CROSSREFS
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Cf. A055436.
Sequence in context: A157756 A061043 A098603 this_sequence A055820 A114167 A108302
Adjacent sequences: A053058 A053059 A053060 this_sequence A053062 A053063 A053064
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KEYWORD
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easy,nonn,base
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AUTHOR
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Felice Russo (felice.russo(AT)katamail.com), Feb 25 2000
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EXTENSIONS
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More terms from James A. Sellers (sellersj(AT)math.psu.edu), Feb 28 2000
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