login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A060844 Primes of the form 6n^2+6n+31. 3
31, 43, 67, 103, 151, 211, 283, 367, 463, 571, 691, 823, 967, 1123, 1291, 1471, 1663, 1867, 2083, 2311, 2551, 2803, 3067, 3343, 3631, 3931, 4243, 4567, 4903, 6367, 6763, 7591, 8467, 8923, 9391, 9871, 10867, 11383, 12451, 13003, 13567, 14143, 14731 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Prime for n=[0,28]. Discriminant is -708, which is class no. 4.

LINKS

Harry J. Smith, Table of n, a(n) for n=1,...,1000

PROG

(PARI) { n=0; for (m=0, 2136, f=6*m^2 + 6*m + 31; if (isprime(f), write("b060844.txt", n++, " ", f)); ) } [From Harry J. Smith, Jul 13 2009]

CROSSREFS

Cf. A060834.

Sequence in context: A096163 A139883 A060834 * A112789 A266989 A161615

Adjacent sequences:  A060841 A060842 A060843 * A060845 A060846 A060847

KEYWORD

nonn,easy

AUTHOR

Tito Piezas III, May 03 2001

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), May 07 2001

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified February 19 09:09 EST 2018. Contains 299330 sequences. (Running on oeis4.)