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0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 910, 10201, 21312, 34243, 48994, 65565, 83956, 104167, 126198, 150049, 3640, 21312, 40804, 62116, 85248, 110200, 136972, 165564, 195976, 228208, 8190, 34243, 62116, 91809, 123322, 156655, 191808, 228781
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refs;
listen;
history;
text;
internal format)
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OFFSET
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0,3
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LINKS
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FORMULA
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When n has one digit a(n)=n^2. When n has two digits a(n)= 910*x^2 + 8381*x*y + 910*y^2. (Here x,y are the digits of n.). - _Keith Schneider_, Jun 16 2007
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EXAMPLE
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a(13) = A110722(13)/121 = 4143403/121 = 34243.
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MATHEMATICA
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Table[FromDigits[Join[IntegerDigits[n], Reverse[IntegerDigits[n]]]]* FromDigits[Join[Reverse[IntegerDigits[n]], IntegerDigits[n]]]/121, {n, 0, 50}] (* G. C. Greubel, Sep 06 2017 *)
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CROSSREFS
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KEYWORD
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base,easy,nonn
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AUTHOR
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EXTENSIONS
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Corrected and extended by James Greene (jmg482(AT)psu.edu), Apr 07 2006
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STATUS
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approved
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