document.write( "Question 408290: What is the algebraic equation for the sequence: 1,12,123,1234,12345...? \n" ); document.write( "
Algebra.Com's Answer #287686 by richard1234(7193)\"\" \"About 
You can put this solution on YOUR website!
We could define a recursive sequence:\r
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\n" ); document.write( "\n" ); document.write( "\"a%5Bn%5D+=+10a%5Bn-1%5D+%2B+n\" where \"a%5B1%5D+=+1\".\r
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\n" ); document.write( "\n" ); document.write( "Basically what this means is, take the n-1'th term, multiply it by 10, and then add n.
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