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 A064963 10000n+1, 10000n+3, 10000n+7, 10000n+9 are all primes. 1
 676, 1189, 2515, 2830, 8224, 9001, 10621, 10786, 17611, 18640, 20983, 21277, 23419, 28468, 31450, 37720, 41530, 41596, 42025, 45238, 47212, 49912, 50992, 52222, 53815, 65827, 70786, 77044, 82324, 88297, 88918, 96193, 99262, 101992 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 MATHEMATICA Select[Range[10^5], PrimeQ[10^4# + 1] && PrimeQ[10^4# + 3] && PrimeQ[10^4# + 7] && PrimeQ[10^4# + 9] &] Select[Range[120000], AllTrue[10000#+{1, 3, 7, 9}, PrimeQ]&] (* Harvey P. Dale, Mar 18 2022 *) CROSSREFS Cf. A007811 and A064687. Sequence in context: A173134 A258963 A309787 * A300984 A185794 A253330 Adjacent sequences: A064960 A064961 A064962 * A064964 A064965 A064966 KEYWORD nonn AUTHOR Robert G. Wilson v, Oct 29 2001 STATUS approved

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Last modified December 6 01:03 EST 2022. Contains 358594 sequences. (Running on oeis4.)