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A140225 a(n) = number of m's among (d(1),d(2),...,d(n)), where m is the maximum value of (d(1),d(2),...,d(n)) and d(n) is the number of divisors of n. 2
1, 1, 2, 1, 1, 1, 1, 2, 2, 3, 3, 1, 1, 1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..105.

EXAMPLE

The sequence of the numbers of divisors of the first 11 positive integers is: 1,2,2,3,2,4,2,4,3,4,2.

The maximum value obtained here is 4. There are three 4's among (d(1), d(2),...,d(11)); so a(11)=3.

MATHEMATICA

a = {}; b = {}; For[n = 1, n < 80, n++, AppendTo[b, Length[Divisors[n]]]; AppendTo[a, Length[Select[b, # == Max[b] &]]]]; a (* Stefan Steinerberger, May 18 2008 *)

CROSSREFS

Cf. A000005, A140223, A140224.

Sequence in context: A244231 A237706 A064823 * A104758 A143227 A329746

Adjacent sequences:  A140222 A140223 A140224 * A140226 A140227 A140228

KEYWORD

nonn

AUTHOR

Leroy Quet, May 12 2008

EXTENSIONS

More terms from Stefan Steinerberger, May 18 2008

a(78)-a(105) from Ray Chandler, Jun 26 2009

STATUS

approved

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Last modified May 13 23:41 EDT 2021. Contains 343868 sequences. (Running on oeis4.)