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A142605 Primes congruent to 6 mod 55. 1
61, 281, 941, 1051, 1381, 1601, 1931, 2371, 2591, 3251, 3361, 3581, 3691, 3911, 4021, 4241, 5011, 5231, 6221, 6551, 6661, 6991, 7211, 7321, 7541, 8311, 8641, 8861, 8971, 9521, 9631, 9851, 10181, 11171, 11831, 11941, 12161, 12491, 12601, 12821, 13151, 13591 (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) ~ 40n log n. - Charles R Greathouse IV, Jul 04 2016

MATHEMATICA

Select[Prime[Range[2500]], MemberQ[{6}, Mod[#, 55]] &] (* Vincenzo Librandi, Aug 31 2012 *)

Select[Range[6, 14000, 55], PrimeQ] (* Harvey P. Dale, Feb 20 2018 *)

PROG

(Magma) [p: p in PrimesUpTo(16000) | p mod 55 eq 6]; // Vincenzo Librandi, Aug 31 2012

(PARI) is(n)=isprime(n) && n%55==6 \\ Charles R Greathouse IV, Jul 04 2016

CROSSREFS

Cf. A000040.

Sequence in context: A302282 A140854 A091912 * A142133 A302730 A234036

Adjacent sequences: A142602 A142603 A142604 * A142606 A142607 A142608

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 11 2008

STATUS

approved

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Last modified February 6 22:49 EST 2023. Contains 360111 sequences. (Running on oeis4.)