A097461 The value of C in y = x^2+17x+C such that y is prime for all x = 0 to 9.

29, 113, 4791863, 405644483, 572474939, 634320569, 682174583, 818968193, 969853403, 1036779743, 2601030389, 2695639619, 3119098589, 3157378883, 3696784103, 4558120313, 4624978013, 4671070319, 5787581213, 7985879579

Offset

1,1

Comments

a(5) > 4.3x10^8

Links

Table of n, a(n) for n=1..20.

Example

a(2) = 113: y = x^2+17x+113.
If x = 0; y = 0+0+113 = 113, which is prime.
If x = 1; y = 1+17+113 = 131, which is prime.
If x = 2; y = 4+34+113 = 151, which is prime.
If x = 3; y = 9+51+113 = 173, which is prime.
If x = 4; y = 16+68+113 = 197, which is prime.
If x = 5; y = 25+85+113 = 223, which is prime.
If x = 6; y = 36+102+113 = 251, which is prime.
If x = 7; y = 49+119+113 = 281, which is prime.
If x = 8; y = 64+136+113 = 313, which is prime.
If x = 9; y = 81+153+113 = 347, which is prime.

Crossrefs

Sequence in context: A050527 A254413 A225928 * A244635 A042646 A188359

Adjacent sequences: A097458 A097459 A097460 * A097462 A097463 A097464

Keyword

nonn

Author

Ray G. Opao, Aug 23 2004

Extensions

More terms from Ryan Propper, Sep 07 2005

Status

approved