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

 

Logo

Many excellent designs for a new banner were submitted. We will use the best of them in rotation.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A190385 Numbers with prime factorization pqrs^3t^3. 3
83160, 98280, 128520, 143640, 154440, 173880, 201960, 216216, 219240, 225720, 231000, 234360, 238680, 266760, 273000, 273240, 279720, 282744, 309960, 316008, 322920, 325080, 334152, 344520, 348840, 355320, 357000, 368280, 373464, 382536 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

T. D. Noe, Table of n, a(n) for n = 1..1000

Will Nicholes, Prime Signatures

MATHEMATICA

f[n_]:=Sort[Last/@FactorInteger[n]]=={1, 1, 1, 3, 3}; Select[Range[600000], f]

CROSSREFS

Cf. A190382, A190383, A190384.

Sequence in context: A237097 A206323 A237535 * A201251 A235097 A125779

Adjacent sequences:  A190382 A190383 A190384 * A190386 A190387 A190388

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, May 09 2011

STATUS

approved

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

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

Last modified April 23 11:22 EDT 2014. Contains 240919 sequences.