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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A154573 a(n) is the first term in a chain of at least n consecutive numbers each with exactly 8 distinct prime factors. 4
9699690, 65893166030, 10042712381260 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

For exactly 9 distinct prime factors, a(1) = 223092870 and a(2) = 5702759516090.

CROSSREFS

Cf. A087977, A087978, A138206, A138207.

Sequence in context: A123322 A147575 A046326 * A058332 A058328 A016822

Adjacent sequences:  A154570 A154571 A154572 * A154574 A154575 A154576

KEYWORD

bref,nonn

AUTHOR

Donovan Johnson (donovan.johnson(AT)yahoo.com), Jan 15 2009

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 23:53 EST 2012. Contains 205689 sequences.