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A048892 Start of n consecutive integers with distinct number of divisors. 2
1, 1, 4, 9, 45, 76, 270, 2204, 3718, 95499, 590890, 16023339, 16475964, 1745175039, 31287652672, 347321438520 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..16.

C. Rivera, The Prime Problems and Puzzles 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

nice,nonn

AUTHOR

Carlos Rivera

EXTENSIONS

More terms from Jud McCranie.

a(15)-a(16) from Donovan Johnson, Feb 17 2010

STATUS

approved

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Last modified April 23 03:26 EDT 2019. Contains 322380 sequences. (Running on oeis4.)