login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A088124 Let f(n,x) = 1 + 4x + 6x^2 + 8x^3 + 9x^4 + ... + composite(n)*x^n; a(n)= smallest prime f(n,x), or 0 if no such prime exists. 1

%I

%S 5,11,19,241,91393,19004355761,3121,79,456151,113,6214345434133,

%T 647380324484508990481,23727240537882663031640150881,

%U 33371196003273361,998893713465761,251,610748560241,14136113,5228581733308860742493949409

%N Let f(n,x) = 1 + 4x + 6x^2 + 8x^3 + 9x^4 + ... + composite(n)*x^n; a(n)= smallest prime f(n,x), or 0 if no such prime exists.

%Y Cf. A088122, A088123, A088125.

%K nonn

%O 1,1

%A _Amarnath Murthy_, Sep 25 2003

%E More terms from Tom Mueller (muel4503(AT)uni-trier.de), May 04 2004

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 May 30 15:21 EDT 2020. Contains 334726 sequences. (Running on oeis4.)