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A141886 Primes congruent to 17 mod 20. 3
17, 37, 97, 137, 157, 197, 257, 277, 317, 337, 397, 457, 557, 577, 617, 677, 757, 797, 857, 877, 937, 977, 997, 1097, 1117, 1217, 1237, 1277, 1297, 1597, 1637, 1657, 1697, 1777, 1877, 1997, 2017, 2137, 2237, 2297, 2357, 2377, 2417, 2437, 2477, 2557, 2617, 2657 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

FORMULA

a(n) ~ 8n log n. - Charles R Greathouse IV, Jul 02 2016

MATHEMATICA

Select[Range[17, 5000, 20], PrimeQ[#]&] (* Vladimir Joseph Stephan Orlovsky, Mar 31 2011*)

PROG

(MAGMA) [p: p in PrimesUpTo(3000) | p mod 20 eq 17 ]; // Vincenzo Librandi, Aug 16 2012

(PARI) is(n)=isprime(n) && n%20==17 \\ Charles R Greathouse IV, Jul 02 2016

CROSSREFS

Cf. A000040, A105854, A141881, A141882, A141883.

Sequence in context: A075892 A155143 A261529 * A269240 A060429 A052292

Adjacent sequences:  A141883 A141884 A141885 * A141887 A141888 A141889

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified December 16 04:05 EST 2019. Contains 330013 sequences. (Running on oeis4.)