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 A100420 Numbers n such that 30*n+{1,7,11,17,19,23,29} are all prime. 2
 22621, 103205, 149125, 237794, 288467, 321451, 364921, 373370, 404002, 851099, 985933, 1106235, 1594044, 1696874, 1780265, 1824421, 1851756, 2249881, 3112939, 3257538, 3397608, 3601651, 3747356, 4347340, 4710990, 4886284 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Values are 4 mod 7. In each case, the 7 primes are necessarily consecutive. See the comment in A100418. - Peter Munn, Sep 06 2023 LINKS Table of n, a(n) for n=1..26. MATHEMATICA Select[Range[5000000], And@@PrimeQ[30 #+{1, 7, 11, 17, 19, 23, 29}]&] (* Harvey P. Dale, Mar 06 2011 *) PROG (Magma) [ n: n in [4..70000000 by 7] | forall{ q: q in [1, 7, 11, 17, 19, 23, 29] | IsPrime(30*n+q) } ]; // Klaus Brockhaus, Feb 24 2011 CROSSREFS Cf. A005776, A007775, A076205, A100418, A100419, A100421-A100423. Sequence in context: A153770 A235067 A233856 * A271444 A335397 A251789 Adjacent sequences: A100417 A100418 A100419 * A100421 A100422 A100423 KEYWORD easy,nonn AUTHOR Ferenc Adorjan (fadorjan(AT)freemail.hu), Nov 19 2004 EXTENSIONS Edited by Don Reble, Nov 17 2005 STATUS approved

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Last modified September 25 23:09 EDT 2023. Contains 365649 sequences. (Running on oeis4.)