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A142616
Primes congruent to 21 mod 55.
1
131, 241, 461, 571, 1231, 1451, 2111, 2221, 2441, 2551, 3541, 3761, 4091, 4201, 4421, 4751, 4861, 5081, 5521, 5741, 5851, 6841, 8161, 8821, 9041, 9151, 9371, 9811, 10141, 10691, 11131, 11351, 11681, 12011, 12451, 12671, 12781, 13001, 13331, 13441, 14321
OFFSET
1,1
LINKS
MATHEMATICA
Select[Prime[Range[2500]], MemberQ[{21}, Mod[#, 55]] &] (* Vincenzo Librandi, Aug 31 2012 *)
PROG
(Magma) [p: p in PrimesUpTo(16000) | p mod 55 eq 21]; // Vincenzo Librandi, Aug 31 2012
CROSSREFS
Cf. A000040.
Sequence in context: A288410 A033206 A107001 * A207527 A132249 A033548
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Jul 11 2008
STATUS
approved