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A064967 100000000n+1, 100000000n+3, 100000000n+7, 100000000n+9 are all primes. 0
27346, 62101, 149650, 168130, 207670, 230830, 242443, 249439, 257227, 278521, 300028, 329389, 342700, 401980, 436315, 452281, 456985, 523972, 528946, 530671, 535918, 612595, 642832, 657151, 732799, 733783, 746848, 758857, 857662, 866608 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..30.

MATHEMATICA

Select[Range[10^6], PrimeQ[10^8# + 1] && PrimeQ[10^8# + 3] && PrimeQ[10^8# + 7] && PrimeQ[10^8# + 9] &]

Select[Range[900000], AllTrue[100000000#+{1, 3, 7, 9}, PrimeQ]&] (* The program uses the AllTrue function from Mathematica version 10 *) (* Harvey P. Dale, May 14 2016 *)

CROSSREFS

Cf. A007811 and A064687.

Sequence in context: A109481 A328214 A234686 * A168215 A224626 A237296

Adjacent sequences:  A064964 A064965 A064966 * A064968 A064969 A064970

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Oct 29 2001

STATUS

approved

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Last modified September 17 03:42 EDT 2021. Contains 347478 sequences. (Running on oeis4.)