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!)
A114850 (n-th semiprime)^(n-th semiprime). 10

%I #12 Oct 19 2017 10:43:05

%S 256,46656,387420489,10000000000,11112006825558016,437893890380859375,

%T 5842587018385982521381124421,341427877364219557396646723584,

%U 88817841970012523233890533447265625

%N (n-th semiprime)^(n-th semiprime).

%C Semiprime analog of A051674. This is also a subset of A113877 "semiprimes to semiprime powers."

%H Harvey P. Dale, <a href="/A114850/b114850.txt">Table of n, a(n) for n = 1..121</a>

%F a(n) = A001358(n)^A001358(n).

%t #^#&/@Select[Range[30],PrimeOmega[#]==2&] (* _Harvey P. Dale_, Nov 07 2016 *)

%Y Cf. A001358, A051674, A113877.

%K easy,nonn

%O 1,1

%A _Jonathan Vos Post_, Feb 20 2006

%E Corrected by _Don Reble_, Nov 22 2006

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 April 18 15:44 EDT 2024. Contains 371780 sequences. (Running on oeis4.)