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Search: id:A087392
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| A087392 |
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a(1) = 1, a(n) = smallest multiple of n beginning with the digit reversal of a(n-1). |
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1
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| 1, 10, 12, 212, 2120, 2124, 42126, 621240, 421263, 3621240, 4212637, 73621248, 842126376, 67362124802, 2084212637610, 16736212480208, 802084212637617, 7167362124802086, 680208421263761709, 9071673621248020860
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OFFSET
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1,2
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FORMULA
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a(n)=n*ceiling[(1/n)*Reverse(a(n-1))*(10^f(n))] where f(n) starts out practically always 1 or 2 and reaches higher values extremely slowly - Sam Alexander (amnalexander(AT)yahoo.com), Nov 15 2003
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EXAMPLE
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a(6) = 2124, a(7) = 42126 that begins with the digit reversal of 2124.
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CROSSREFS
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Sequence in context: A038314 A119225 A078217 this_sequence A092887 A131365 A102362
Adjacent sequences: A087389 A087390 A087391 this_sequence A087393 A087394 A087395
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KEYWORD
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base,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 09 2003
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EXTENSIONS
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More terms from Sam Alexander (amnalexander(AT)yahoo.com), Nov 15 2003
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