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A220081
Primes of the form 15*n^2 - 15*n + 17.
1
17, 47, 107, 197, 317, 467, 647, 857, 1097, 1367, 1667, 1997, 2357, 3167, 3617, 5147, 5717, 6317, 6947, 7607, 8297, 9767, 12197, 13967, 14897, 18917, 19997, 21107, 22247, 23417, 25847, 27107, 29717, 33857, 36767, 41357, 51347, 53117, 54917, 56747, 60497
OFFSET
1,1
COMMENTS
The formula gives consecutive primes for n from 0 to 13.
LINKS
Eric Weisstein's World of Mathematics, Prime-Generating Polynomial
MATHEMATICA
Select[Table[15 n^2 - 15 n + 17, {n, 1, 100}], PrimeQ]
PROG
(Magma) [a: n in [1..100] | IsPrime(a) where a is 15*n^2 -15*n + 17 ]
CROSSREFS
Subsequence of A030432, A039949, A141860.
Sequence in context: A031374 A201792 A039949 * A229448 A155841 A147058
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Dec 17 2012
STATUS
approved