The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation. 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
 13, 73, 97, 5827, 442963, 2625487, 2674927, 4791847, 22788583, 28860367, 41303497, 58231387, 61464883, 79754713, 79997893, 83380027, 85849903, 95644777, 97776193, 99093487, 109197217, 120527917, 140745013, 164976403 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE a(3) = 97: y = x^2+15x+97. If x = 0; y = 0+0+97 = 97, which is prime. If x = 1; y = 1+15+97 = 113, which is prime. If x = 2; y = 4+30+97 = 131, which is prime. If x = 3; y = 9+45+97 = 151, which is prime. If x = 4; y = 16+60+97 = 173, which is prime. If x = 5; y = 25+75+97 = 197, which is prime. If x = 6; y = 36+90+97 = 223, which is prime. If x = 7; y = 49+105+97 = 251, which is prime. If x = 8; y = 64+120+97 = 281, which is prime. CROSSREFS Sequence in context: A107141 A139849 A139911 * A138353 A097402 A255416 Adjacent sequences:  A097457 A097458 A097459 * A097461 A097462 A097463 KEYWORD nonn AUTHOR Ray G. Opao, Aug 23 2004 STATUS approved

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.

Last modified June 7 02:48 EDT 2020. Contains 334836 sequences. (Running on oeis4.)