This site is supported by donations to The OEIS Foundation.

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A110014 Primes p such that 6p + 7 is a square. 4
 3, 7, 19, 47, 59, 103, 139, 227, 307, 367, 467, 503, 619, 839, 887, 1039, 1319, 1567, 1699, 1907, 1979, 2203, 2687, 3407, 4003, 4759, 4987, 5827, 6079, 6599, 7703, 8287, 9203, 9679, 10499, 10667, 11527, 12239, 13159, 14503, 16747, 17387, 19379, 22447 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS FORMULA a(n) = (A110015(n) - 7)/6. MATHEMATICA Select[Prime[Range[3000]], IntegerQ[Sqrt[6#+7]]&] (* Harvey P. Dale, Dec 08 2010 *) CROSSREFS Cf. A110015, A110016. Sequence in context: A280756 A029855 A209397 * A026581 A151535 A181360 Adjacent sequences:  A110011 A110012 A110013 * A110015 A110016 A110017 KEYWORD easy,nonn AUTHOR Giovanni Teofilatto, Sep 03 2005 EXTENSIONS Corrected and extended by Ray Chandler, Sep 04 2005 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 January 16 19:49 EST 2019. Contains 319206 sequences. (Running on oeis4.)