login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A066963 Start of a record-breaking run of consecutive composite integers with an odd number of prime factors. 0

%I #7 Apr 10 2022 14:16:51

%S 8,27,170,242,2522,5882,18238,48513,61532,506517,752714,1213848,

%T 3098613,5481504,78214964,103886546,118689518,1608906624,3939877246,

%U 7964728742,166384601987,250060982098

%N Start of a record-breaking run of consecutive composite integers with an odd number of prime factors.

%C a(23) > 10^12. [_Donovan Johnson_, Oct 11 2010]

%e a(3)=170 because this is the start of third record breaking run of consecutive composite integers (170,171,172) with an odd number of prime factors (170=2*5*17, 171=3*3*19, 172=2*2*43).

%Y Cf. A066793, A066794.

%K more,nonn

%O 1,1

%A _Shyam Sunder Gupta_, Jan 27 2002

%E a(18)-a(21) from _Donovan Johnson_, Sep 09 2008

%E a(22) from _Donovan Johnson_, Oct 11 2010

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)