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 A089358 Numbers n such that n^2 - 3n + 3 is prime. 1
 3, 4, 5, 7, 8, 10, 14, 16, 17, 19, 22, 23, 26, 29, 35, 40, 43, 52, 56, 59, 61, 64, 68, 71, 73, 77, 79, 80, 82, 91, 92, 101, 103, 107, 112, 113, 119, 121, 133, 140, 143, 145, 149, 152, 155, 157, 163, 164, 166, 169, 170, 175, 178, 190, 191, 194, 196 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 REFERENCES M. Cerasoli, F. Eugeni and M. Protasi, Elementi di Matematica Discreta, Bologna 1988 Emanuele Munarini and Norma Zagaglia Salvi, Matematica Discreta,UTET, CittaStudiEdizioni, Milano 1997 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 FORMULA a(n) = A002384(n)+2. MATHEMATICA Select[Range[200], PrimeQ[#^2-3#+3]&] (* Harvey P. Dale, Mar 23 2012 *) PROG (PARI) is(n)=isprime(n^2-3*n+3) \\ Charles R Greathouse IV, Jun 12 2017 CROSSREFS Sequence in context: A285950 A187689 A137292 * A173001 A325130 A047500 Adjacent sequences:  A089355 A089356 A089357 * A089359 A089360 A089361 KEYWORD easy,nonn AUTHOR Giovanni Teofilatto, Dec 27 2003 EXTENSIONS Corrected by Harvey P. Dale, Mar 23 2012 STATUS approved

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Last modified July 16 04:26 EDT 2019. Contains 325064 sequences. (Running on oeis4.)