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A142417
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Primes congruent to 4 mod 49.
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1
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53, 151, 347, 641, 739, 1033, 1229, 1327, 1523, 1621, 2111, 2503, 2699, 2797, 3581, 4463, 4561, 5051, 5443, 5639, 5737, 6521, 6619, 7109, 7207, 8089, 8677, 8971, 9461, 10343, 11519, 11617, 11813, 12107, 12401, 13381, 13577, 14557, 14753, 14851, 15439, 15733
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OFFSET
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1,1
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LINKS
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Vincenzo Librandi, Table of n, a(n) for n = 1..1000
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FORMULA
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a(n) ~ 42n log n. - Charles R Greathouse IV, Jul 03 2016
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MATHEMATICA
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Select[Prime[Range[2500]], MemberQ[{4}, Mod[#, 49]] &] (* Vincenzo Librandi, Aug 27 2012 *)
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PROG
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(Magma) [p: p in PrimesUpTo(16000) | p mod 49 eq 4]; // Vincenzo Librandi, Aug 27 2012
(PARI) is(n)=isprime(n) && n%49==4 \\ Charles R Greathouse IV, Jul 03 2016
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CROSSREFS
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Cf. A000040.
Sequence in context: A251076 A142043 A175600 * A217718 A044385 A044766
Adjacent sequences: A142414 A142415 A142416 * A142418 A142419 A142420
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane, Jul 11 2008
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STATUS
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approved
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