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!)
A097460 The value of C in y = x^2+15x+C such that y is prime for all x = 0 to 8. 1

%I

%S 13,73,97,5827,442963,2625487,2674927,4791847,22788583,28860367,

%T 41303497,58231387,61464883,79754713,79997893,83380027,85849903,

%U 95644777,97776193,99093487,109197217,120527917,140745013,164976403

%N The value of C in y = x^2+15x+C such that y is prime for all x = 0 to 8.

%e a(3) = 97: y = x^2+15x+97.

%e If x = 0; y = 0+0+97 = 97, which is prime.

%e If x = 1; y = 1+15+97 = 113, which is prime.

%e If x = 2; y = 4+30+97 = 131, which is prime.

%e If x = 3; y = 9+45+97 = 151, which is prime.

%e If x = 4; y = 16+60+97 = 173, which is prime.

%e If x = 5; y = 25+75+97 = 197, which is prime.

%e If x = 6; y = 36+90+97 = 223, which is prime.

%e If x = 7; y = 49+105+97 = 251, which is prime.

%e If x = 8; y = 64+120+97 = 281, which is prime.

%K nonn

%O 1,1

%A _Ray G. Opao_, Aug 23 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 July 11 17:24 EDT 2020. Contains 335626 sequences. (Running on oeis4.)