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A112780
Number of highly composite numbers (definition 1, A002182) with n decimal digits.
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
OFFSET
1,1
LINKS
Eric Weisstein's World of Mathematics, Highly Composite Number
FORMULA
First differences of A112781. - Amiram Eldar, Jul 02 2019
EXAMPLE
a(1) = 4 since there are four highly composite numbers with one decimal digit {1,2,4,6}.
CROSSREFS
KEYWORD
nonn,look,base
AUTHOR
Ray Chandler, Nov 11 2005
STATUS
approved