This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A065518 Denominator of n/(sum of the digits of n). 2
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 4, 5, 2, 7, 8, 1, 10, 1, 1, 2, 5, 1, 7, 4, 1, 5, 11, 1, 4, 5, 2, 7, 8, 1, 10, 11, 4, 1, 5, 1, 7, 2, 1, 5, 11, 1, 13, 1, 2, 7, 8, 1, 2, 11, 4, 13, 14, 1, 7, 4, 1, 5, 11, 2, 13, 7, 5, 1, 8, 1, 10, 11, 4, 13, 2, 5, 16, 1, 1, 5, 11, 1, 13 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,11 LINKS Harry J. Smith, Table of n, a(n) for n = 1..1000 EXAMPLE 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, 11/2, 4, 13/4, 14/5, 5/2, 16/7, 17/8, 2, 19/10, 10, 7, 11/2, ... PROG (PARI) SumD(x)= { local(s=0); while (x>9, s+=x-10*(x\10); x\=10); return(s + x) } { for (n=1, 1000, a=denominator(n/SumD(n)); write("b065518.txt", n, " ", a) ) } \\ Harry J. Smith, Oct 20 2009 (PARI) a(n) = denominator(n/sumdigits(n)); \\ Michel Marcus, Jun 18 2018 CROSSREFS Cf. A065517, A007954. Sequence in context: A308364 A210707 A078606 * A072012 A172500 A038502 Adjacent sequences:  A065515 A065516 A065517 * A065519 A065520 A065521 KEYWORD nonn,base AUTHOR N. J. A. Sloane, Nov 27 2001 EXTENSIONS Definition corrected by Harry J. Smith, Oct 20 2009 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 17 17:32 EDT 2019. Contains 327136 sequences. (Running on oeis4.)