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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A034287 Numbers n such that product of divisors of n is larger than for any number less than n. 7
1, 2, 3, 4, 6, 8, 10, 12, 18, 20, 24, 30, 36, 48, 60, 72, 84, 90, 96, 108, 120, 168, 180, 240, 336, 360, 420, 480, 504, 540, 600, 630, 660, 672, 720, 840, 1080, 1260, 1440, 1680, 2160, 2520, 3360, 3780, 3960, 4200, 4320, 4620, 4680, 5040, 7560, 9240 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

It appears that 2 and 3 are the only terms in this sequence that are not in A034288. - T. D. Noe, Mar 10 2007

Is this the same as A067128?

a(n) = numbers m where record values occur in A007955(m); A007955(m) = product of divisors of m. a(n) = possible values of A174901(m) in increasing order, a(n) = the smallest numbers k such that A007955(k) = A174899(n). [From Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Apr 01 2010]

Equals A067128 for the 105834 terms less than 10^150.

LINKS

T. D. Noe, Table of n, a(n) for n=1..161

CROSSREFS

Cf. A007956, A034288, A034090, A034091, A067128.

Sequence in context: A175381 A074715 * A067128 A120432 A020490 A014875

Adjacent sequences:  A034284 A034285 A034286 * A034288 A034289 A034290

KEYWORD

easy,nonn,nice

AUTHOR

Erich Friedman (erich.friedman(AT)stetson.edu)

EXTENSIONS

More terms from David W. Wilson (davidwwilson(AT)comcast.net), Dec 19 2001

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 15:39 EST 2012. Contains 205635 sequences.