A066578 a(n) = floor(n/(sum of digits of n)).

1, 1, 1, 1, 1, 1, 1, 1, 1, 10, 5, 4, 3, 2, 2, 2, 2, 2, 1, 10, 7, 5, 4, 4, 3, 3, 3, 2, 2, 10, 7, 6, 5, 4, 4, 4, 3, 3, 3, 10, 8, 7, 6, 5, 5, 4, 4, 4, 3, 10, 8, 7, 6, 6, 5, 5, 4, 4, 4, 10, 8, 7, 7, 6, 5, 5, 5, 4, 4, 10, 8, 8, 7, 6, 6, 5, 5, 5, 4, 10, 9, 8, 7, 7, 6, 6, 5, 5, 5, 10, 9, 8, 7, 7, 6, 6, 6, 5, 5, 100

Offset

1,10

Links

Harry J. Smith, Table of n, a(n) for n = 1..1000

Example

a(12) = floor(12/(1+2)) = 4; a(14) = floor(14/(1+4)) = floor(2.8) = 2.
a(24) = floor(24/(2+4)) = 4. a(29) = floor(29/(2+9)) = 2.

Prog

(PARI) SumD(x)=my(s); while (x>9, s+=x%10; x\=10); return(s + x)
for (n=1, 1000, a=floor(n/SumD(n)); write("b066578.txt", n, " ", a)) \\ Harry J. Smith, Mar 07 2010
(PARI) a(n) = n\sumdigits(n); \\ Michel Marcus, Jan 04 2016

Crossrefs

Cf. A007953, A066577, A080462.

Sequence in context: A102584 A134167 A080461 * A097327 A226583 A007272

Adjacent sequences: A066575 A066576 A066577 * A066579 A066580 A066581

Keyword

nonn,base

Author

Amarnath Murthy, Dec 20 2001

Extensions

More terms from Reinhard Zumkeller, Feb 26 2003

Status

approved