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Search: id:A063543
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| A063543 |
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n - product of nonzero digits of n. |
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+0
2
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| 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 18, 19, 18, 17, 16, 15, 14, 13, 12, 11, 27, 28, 26, 24, 22, 20, 18, 16, 14, 12, 36, 37, 34, 31, 28, 25, 22, 19, 16, 13, 45, 46, 42, 38, 34, 30, 26, 22, 18, 14, 54, 55, 50, 45, 40, 35, 30, 25, 20, 15, 63, 64, 58
(list; graph; listen)
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OFFSET
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1,10
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,2000
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EXAMPLE
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a(20) = 20 - 2 = 18.
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PROGRAM
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(PARI) ProdNzD(x)= { local(d, p); p=1; while (x>9, d=x-10*(x\10); if (d, p*=d); x\=10); return(p*x) } { for (n=1, 2000, write("b063543.txt", n, " ", n - ProdNzD(n)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 25 2009]
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CROSSREFS
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Cf. A063114.
Sequence in context: A158001 A157763 A010735 this_sequence A096166 A078548 A095777
Adjacent sequences: A063540 A063541 A063542 this_sequence A063544 A063545 A063546
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KEYWORD
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nonn,base,easy
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Aug 14 2001
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EXTENSIONS
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More terms from Larry Reeves (larryr(AT)acm.org), Aug 14 2001
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