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 A070846 Smallest prime == 1 mod (2n). 10
 3, 5, 7, 17, 11, 13, 29, 17, 19, 41, 23, 73, 53, 29, 31, 97, 103, 37, 191, 41, 43, 89, 47, 97, 101, 53, 109, 113, 59, 61, 311, 193, 67, 137, 71, 73, 149, 229, 79, 241, 83, 337, 173, 89, 181, 277, 283, 97, 197, 101, 103, 313, 107, 109, 331, 113, 229, 233, 709, 241 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Dmitry Kamenetsky, Table of n, a(n) for n = 1..50000 FORMULA a(n) = 2*n*A016014(n) + 1. - Dmitry Kamenetsky, Oct 26 2016 MATHEMATICA With[{prs=Prime[Range[200]]}, Flatten[Table[Select[prs, Mod[#, 2n]==1&, 1], {n, 60}]]] (* Harvey P. Dale, Jan 16 2013 *) PROG (PARI) for(n=1, 80, s=1; while((isprime(s)*s-1)%(2*n)>0, s++); print1(s, ", ")) CROSSREFS Cf. A070847 to A070853. Cf. A034694, A016014. Sequence in context: A291107 A132445 A307437 * A078683 A099863 A112092 Adjacent sequences:  A070843 A070844 A070845 * A070847 A070848 A070849 KEYWORD nonn AUTHOR Amarnath Murthy, May 15 2002 EXTENSIONS More terms from Benoit Cloitre, May 18 2002 STATUS approved

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Last modified October 15 19:25 EDT 2019. Contains 328037 sequences. (Running on oeis4.)