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A053061
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a(n) is the decimal concatenation of n and n^2.
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11
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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, 371369, 381444, 391521
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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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FORMULA
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MATHEMATICA
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Table[FromDigits[Join[IntegerDigits[n], IntegerDigits[n^2]]], {n, 40}] (* Harvey P. Dale, May 24 2012 *)
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PROG
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(Magma) [Seqint(Intseq(n^2) cat Intseq(n)): n in [1..40]]; // Vincenzo Librandi, Jan 03 2015
(Python)
def a(n): return int(str(n) + str(n*n))
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CROSSREFS
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KEYWORD
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easy,nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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