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A154261
Primes of the form 9n^2-10n+3.
2
3, 2, 19, 107, 499, 1627, 4139, 5827, 6779, 10067, 12619, 16987, 18587, 22003, 23819, 40939, 43403, 59699, 65707, 68819, 89003, 111779, 124139, 132739, 137147, 175003, 190387, 195659, 206419, 223099, 258403, 296299
OFFSET
1,1
COMMENTS
For all entries p = 9*n^2-10*n+3 in the sequence, 9p-2 = (9n-5)^2 is a perfect square.
LINKS
MATHEMATICA
Table[9n^2-10n+3, {n, 0, 1500}], PrimeQ] (* Vincenzo Librandi, Jul 16 2012 *)
PROG
(Magma) [ a: n in [0..250] | IsPrime(a) where a is 9*n^2-10*n+3]; // Vincenzo Librandi, Jul 16 2012
CROSSREFS
Cf. A154264 (associated n), A154262.
Sequence in context: A223881 A154262 A367548 * A098655 A065038 A123225
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Jan 06 2009
STATUS
approved