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

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A066794 Start of a record-breaking run of consecutive integers with an odd number of prime factors. 5
2, 11, 17, 27, 170, 279, 428, 5879, 13871, 41233, 171707, 1004646, 1633357, 5460156, 11902755, 21627159, 38821328, 41983357, 179376463, 130292951546, 393142151459, 2100234982892, 5942636062287 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(22) > 10^12. [From Donovan Johnson, Oct 11 2010]

a(24) > 10^13. - Giovanni Resta, Aug 01 2013

LINKS

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

CROSSREFS

Cf. A066793.

Sequence in context: A060427 A108894 A233445 * A087379 A019364 A164368

Adjacent sequences:  A066791 A066792 A066793 * A066795 A066796 A066797

KEYWORD

nonn

AUTHOR

G. L. Honaker, Jr., Jan 18 2002

EXTENSIONS

Except for first 4 or 5 terms, computed by Shyam Sunder Gupta, Jan 26 2002

Corrected by Don Reble, Nov 20 2006

a(20)-a(21) from Donovan Johnson, Oct 11 2010

a(22)-a(23) from Giovanni Resta, Aug 01 2013

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 December 13 03:41 EST 2019. Contains 329968 sequences. (Running on oeis4.)