login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A072847 The a(n)-th highly-composite number (A002182) is the first one divisible by 2^n. 1
2, 3, 6, 8, 21, 23, 50, 105, 143, 221, 634, 770, 1197, 2996, 5489, 7129, 18673, 25236, 46246, 96437, 179480, 298091, 425614 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

First occurrence of n in A112779. - Lekraj Beedassy, Sep 02 2006

LINKS

Table of n, a(n) for n=1..23.

EXAMPLE

a(10) = 221 because the 221st highly-composite number (1487541362038078419072000) is divisible by 2^10.

CROSSREFS

Cf. A002182, A068506, A112779.

Sequence in context: A217137 A248824 A130623 * A274371 A339589 A095895

Adjacent sequences:  A072844 A072845 A072846 * A072848 A072849 A072850

KEYWORD

nonn,more

AUTHOR

Don Reble, Jul 24 2002

EXTENSIONS

More terms from Amiram Eldar, Jul 01 2019

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 23 10:24 EDT 2021. Contains 345397 sequences. (Running on oeis4.)