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Search: id:A110725
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| A110725 |
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[{n concatenate R(n)}+{ R(n) concatenate n}]/11, R(n) = digit reversal of n. |
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+0
4
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| 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 101, 202, 303, 404, 505, 606, 707, 808, 909, 1010, 202, 303, 404, 505, 606, 707, 808, 909, 1010, 1111, 303, 404, 505, 606, 707, 808, 909, 1010, 1111, 1212, 404, 505, 606, 707, 808, 909, 1010, 1111, 1212, 1313, 505
(list; graph; listen)
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OFFSET
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0,2
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FORMULA
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A110724(n)/11.
When n has one digit a(n)=2*n. When n has two digits a(n)= 101*x + 101*y. (Here x,y are the digits of n.) - Keith Schneider, Jun 16 2007
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EXAMPLE
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a(12) = {1221 + 2112}/11 = 303. a(68) = {6886 + 8668}/11 = 1414.
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MATHEMATICA
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Table[(FromDigits[Join[IntegerDigits[n], Reverse[IntegerDigits[n]]]] + FromDigits[Join[Reverse[IntegerDigits[n]], IntegerDigits[n]]])/11, {n, 0, 50}] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Jun 17 2007
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CROSSREFS
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Cf. A110722, A110723, A110724.
Sequence in context: A066122 A119766 A030143 this_sequence A100800 A094041 A058066
Adjacent sequences: A110722 A110723 A110724 this_sequence A110726 A110727 A110728
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KEYWORD
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base,nonn,less,easy
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 09 2005
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EXTENSIONS
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Corrected and extended by Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Jun 17 2007
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