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 A301810 Smallest prime that starts a sequence of at least n consecutive primes with a difference of 210. 0
 2, 20831323, 264860525297, 110176968196069, 21128733495648197, 2537788218640453109 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS a(n) is the first prime of the sequence. a(1) = 2. Thereafter, a(n) = smallest p such that p + 210*(k-1) and p + 210*k are consecutive primes for all 1 <= k <= n - 1. - Altug Alkan, Mar 27 2018 a(7) <= 71137654873189893604531. - Paul Zimmermann, Nov 12 2018 LINKS Table of n, a(n) for n=1..6. EXAMPLE a(2)=20831323 since the first prime gap of 210 starts at 20831323. CROSSREFS Cf. A002386, A116495. Sequence in context: A259407 A157992 A322145 * A296627 A247214 A367833 Adjacent sequences: A301807 A301808 A301809 * A301811 A301812 A301813 KEYWORD nonn,hard,more AUTHOR Paul Zimmermann, Mar 27 2018 EXTENSIONS a(6) from Paul Zimmermann, Nov 12 2018 STATUS approved

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Last modified August 12 12:28 EDT 2024. Contains 375092 sequences. (Running on oeis4.)