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A062041
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Numbers for which the product of the digits is 9 times their sum.
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1
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369, 396, 466, 639, 646, 664, 693, 936, 963, 2266, 2338, 2383, 2626, 2662, 2833, 3238, 3283, 3328, 3382, 3823, 3832, 6226, 6262, 6622, 8233, 8323, 8332, 11379, 11397, 11459, 11495, 11549, 11594, 11739, 11793, 11937, 11945, 11954, 11973
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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LINKS
| Harry J. Smith, Table of n, a(n) for n=0,...,500
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EXAMPLE
| 12339 belongs to the sequence as (1*2*3*3*9)/(1+2+3+3+9) = 162/18 = 9.
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PROG
| (PARI) SumD(x)= { s=0; while (x>9, s=s+x-10*(x\10); x\=10); return(s + x) } ProdD(x)= { p=1; while (x>9, p=p*(x-10*(x\10)); x\=10); return(p*x) } { n=-1; for (m=1, 10^7, if (ProdD(m)==9*SumD(m), write("b062041.txt", n++, " ", m); if (n==500, break)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 30 2009]
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CROSSREFS
| Sequence in context: A098823 A173055 A097501 * A205730 A183351 A205911
Adjacent sequences: A062038 A062039 A062040 * A062042 A062043 A062044
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KEYWORD
| nonn,base,easy
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jun 28 2001
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EXTENSIONS
| Corrected and extended by Larry Reeves (larryr(AT)acm.org), Jul 06 2001
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