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!)
A075578 Smaller of two successive 4th powers whose sum is a prime. 0

%I #11 Mar 14 2015 01:59:13

%S 1,16,81,256,1296,4096,6561,20736,28561,38416,65536,390625,456976,

%T 531441,923521,1185921,1336336,1679616,1874161,2085136,2560000,

%U 3418801,5308416,8503056,15752961,20151121,21381376,26873856,29986576,37015056

%N Smaller of two successive 4th powers whose sum is a prime.

%p s := 0:for i from 1 to 200 do if(isprime(i^4+(i+1)^4)) then s := s+1:a[s] := i^4:fi:od:seq(a[k],k=1..s);

%t Transpose[Select[Partition[Range[100]^4,2,1],PrimeQ[Total[#]]&]][[1]] (* _Harvey P. Dale_, Sep 19 2011 *)

%K nonn

%O 0,2

%A _Amarnath Murthy_, Sep 25 2002

%E More terms from _Sascha Kurz_, Jan 26 2003

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 February 29 13:01 EST 2024. Contains 370425 sequences. (Running on oeis4.)