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 A064976 n*10^2-1, n*10^2-3, n*10^2-7 and n*10^2-9 are all prime. 2
 2, 695, 797, 1193, 2015, 2480, 3005, 3020, 3464, 3887, 6338, 6575, 6611, 6803, 7394, 7682, 7958, 9074, 10436, 10940, 11468, 12284, 13226, 15773, 17495, 18374, 19799, 20792, 22028, 23036, 25766, 26795, 27317, 27593, 28793, 29276, 29528, 30635 (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[40000], PrimeQ[10^2# - 1] && PrimeQ[10^2# - 3] && PrimeQ[10^2# - 7] && PrimeQ[10^2# - 9] &] Select[Range[31000], AllTrue[100#-{1, 3, 7, 9}, PrimeQ]&] (* The program uses the AllTrue function from Mathematica version 10 *) (* Harvey P. Dale, Feb 01 2015 *) CROSSREFS Sequence in context: A106301 A127623 A115474 * A062665 A256669 A361451 Adjacent sequences: A064973 A064974 A064975 * A064977 A064978 A064979 KEYWORD easy,nonn AUTHOR Robert G. Wilson v, Oct 30 2001 STATUS approved

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Last modified June 3 11:09 EDT 2023. Contains 363110 sequences. (Running on oeis4.)