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A064966 Numbers n such that 10000000n+1, 10000000n+3, 10000000n+7, 10000000n+9 are all primes. 0
12022, 15298, 44413, 61507, 72199, 87463, 96538, 108862, 112129, 117694, 122176, 125716, 175078, 185746, 201493, 227221, 250414, 267844, 273460, 371194, 387028, 391765, 397066, 397792, 454921, 581365, 601177, 621010, 642199, 659788, 677206 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..31.

MATHEMATICA

Select[Range[10^6/2], PrimeQ[10^7# + 1] && PrimeQ[10^7# + 3] && PrimeQ[10^7# + 7] && PrimeQ[10^7# + 9] &]

CROSSREFS

Cf. A007811 and A064687.

Sequence in context: A183059 A287046 A235308 * A292815 A252304 A251680

Adjacent sequences:  A064963 A064964 A064965 * A064967 A064968 A064969

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Oct 29 2001

STATUS

approved

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Last modified September 24 14:46 EDT 2021. Contains 347643 sequences. (Running on oeis4.)