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Search: id:A066008
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| A066008 |
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Number of n-digit positive integers m for which m/(sum of digits of m) is an integer. |
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+0
3
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OFFSET
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1,1
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LINKS
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S. W. Golomb, Sums and products of digits, IEEE Information Theory Society Newsletter, 51 (No. 3, Sept. 2001), p. 15.
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PROGRAM
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(ARIBAS): function a066008(a, b: integer); var n, c, m, j, k: integer; s: string; begin for n := a to b do c := 0; for m := 10^n to 10^(n+1) - 1 do s := itoa(m); k := 0; for j := 0 to length(s) - 1 do k := k + atoi(s[j..j]); end; if m mod k = 0 then inc(c); end; end; write(c, ", "); end; return; end; a066008(0, 7).
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CROSSREFS
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Cf. A007953, A034726, A034727.
Adjacent sequences: A066005 A066006 A066007 this_sequence A066009 A066010 A066011
Sequence in context: A024843 A079040 A057453 this_sequence A101058 A102217 A124065
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KEYWORD
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nonn,base
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AUTHOR
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njas, Dec 11 2001
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EXTENSIONS
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One more term from Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Dec 12 2001
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