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A126720 Primes p such that p - q = 24, where q is the previous prime before p; or prime numbers preceded by precisely 23 composite numbers. 1
1693, 2203, 4201, 4547, 4783, 5261, 6197, 6421, 6761, 7103, 7393, 7817, 8147, 8353, 9091, 11027, 11657, 11863, 12097, 12143, 13033, 13291, 16057, 16217, 16477, 16787, 16811, 17077, 17707, 18013, 18617, 18661, 19207, 19531, 20507, 22433, 22901 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A098974(n) + 24. - Amiram Eldar, Mar 13 2020

a(n) >> n log^2 n. - Charles R Greathouse IV, Mar 13 2020

MATHEMATICA

a = {}; Do[If[Prime[x + 1] - Prime[x] == 24, AppendTo[a, Prime[x + 1]]], {x, 1, 10000}]; a

PROG

(PARI) q=2; forprime(p=3, 1e5, if(p-q==24, print1(p", ")); q=p) \\ Charles R Greathouse IV, Mar 13 2020

CROSSREFS

Cf. A000230, A033560, A031505, A031925, A031927, A098974, A098976, A061779.

Sequence in context: A237533 A089674 A252429 * A325884 A224605 A252570

Adjacent sequences:  A126717 A126718 A126719 * A126721 A126722 A126723

KEYWORD

nonn,easy

AUTHOR

Artur Jasinski, Feb 13 2007

STATUS

approved

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Last modified January 20 20:50 EST 2021. Contains 340332 sequences. (Running on oeis4.)