This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A083900 Number of divisors of n with largest digit <= 5 (base 10). 4
 1, 2, 2, 3, 2, 3, 1, 3, 2, 4, 2, 5, 2, 3, 4, 3, 1, 3, 1, 6, 3, 4, 2, 6, 3, 3, 2, 4, 1, 7, 2, 4, 4, 3, 3, 5, 1, 2, 3, 7, 2, 6, 2, 6, 5, 3, 1, 6, 1, 6, 3, 5, 2, 4, 4, 4, 2, 2, 1, 10, 1, 3, 3, 4, 3, 6, 1, 4, 3, 6, 1, 6, 1, 2, 5, 3, 2, 4, 1, 7, 2, 3, 1, 8, 2, 3, 2, 6, 1, 8, 2, 4, 3, 2, 2, 7, 1, 3, 4, 9, 2, 6, 2, 6, 7 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(n) = A083899(n) + A083892(n) = A083901(n) - A083893(n). LINKS MATHEMATICA Table[Count[Divisors[n], _?(Max[IntegerDigits[#]]<6&)], {n, 110}] (* Harvey P. Dale, Feb 02 2015 *) CROSSREFS Cf. A054055, A000005. Sequence in context: A230140 A156220 A261653 * A113517 A278399 A225416 Adjacent sequences:  A083897 A083898 A083899 * A083901 A083902 A083903 KEYWORD nonn,base AUTHOR Reinhard Zumkeller, May 08 2003 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 October 15 20:04 EDT 2019. Contains 328037 sequences. (Running on oeis4.)