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A112780 Number of highly composite numbers (definition 1, A002182) with n decimal digits. +0
5
4, 5, 6, 5, 9, 9, 9, 9, 10, 10, 10, 9, 11, 11, 8, 10, 11, 10, 11, 10, 9, 10, 13, 10, 12, 10, 13, 13, 13, 12, 13, 11, 14, 13, 13, 12, 13, 15, 13, 14, 13, 14, 13, 13, 15, 12, 14, 13, 17, 14, 16, 16, 15, 17, 15, 19, 15, 18, 15, 16, 17, 16, 17, 16, 15, 19, 15, 19, 14, 18, 14, 19, 17 (list; graph; listen)
OFFSET

1,1

LINKS

Eric Weisstein's World of Mathematics, Highly Composite Number

A. Flammenkamp, First 1200 highly composite numbers

EXAMPLE

a(1) = 4 since there are four highly composite numbers with one decimal digit {1,2,4,6}.

CROSSREFS

Cf. A002182, A002183, A108602, A112778, A112779, A112781.

Sequence in context: A113184 A136004 A134299 this_sequence A021223 A058979 A046343

Adjacent sequences: A112777 A112778 A112779 this_sequence A112781 A112782 A112783

KEYWORD

base,nonn

AUTHOR

Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 11 2005

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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