login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A133411 Smallest highly composite number of the form k*a(n-1) where k is an integer greater than 1. 0
1, 2, 4, 12, 24, 48, 240, 720, 5040, 10080, 20160, 221760, 665280, 8648640, 17297280, 294053760, 5587021440, 27935107200, 642507465600, 1927522396800, 13492656777600, 26985313555200, 782574093100800, 24259796886124800 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Conjecture: subsequence of A019505.

EXAMPLE

6 is not in the sequence because 6 is not a multiple of 4, the previous term

CROSSREFS

Cf. A002182.

Sequence in context: A089888 A181809 A181806 * A201078 A004645 A045687

Adjacent sequences:  A133408 A133409 A133410 * A133412 A133413 A133414

KEYWORD

nonn

AUTHOR

J. Lowell, jhbubby(AT)mindspring.com, Nov 25 2007

EXTENSIONS

a(12)-a(24) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Sep 09 2008

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 14 20:13 EST 2012. Contains 205663 sequences.