

A048892


Start of n consecutive integers with distinct number of divisors.


3



1, 1, 4, 9, 45, 76, 270, 2204, 3718, 95499, 590890, 16023339, 16475964, 1745175039, 31287652672, 347321438520
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OFFSET

1,3


LINKS

Table of n, a(n) for n=1..16.
Carlos Rivera, Problem 20. Divisors (II) K consecutive numbers with the same number of divisors, The Prime Puzzles and Problems Connection. See Problem 20c.


EXAMPLE

The 5th number of this sequence, 45, means that 45, 46, 47, 48 and 49 all have distinct number of divisors: 6, 4, 2, 10 and 3, respectively.


CROSSREFS

Sequence in context: A149170 A024053 A197970 * A108849 A025558 A298986
Adjacent sequences: A048889 A048890 A048891 * A048893 A048894 A048895


KEYWORD

nonn,nice,more


AUTHOR

Carlos Rivera


EXTENSIONS

More terms from Jud McCranie
a(15)a(16) from Donovan Johnson, Feb 17 2010


STATUS

approved



