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A273919 Number of 9-tuples of primes in arithmetic progression less than 10^n. 4

%I #12 Jun 09 2016 04:34:47

%S 0,0,0,3,57,984,22551

%N Number of 9-tuples of primes in arithmetic progression less than 10^n.

%D See A113827.

%e The least 9-tuple is {199, 409, 619, 829, 1039, 1249, 1459, 1669, 1879}, which is also the beginning of the least 10-tuple. This explains a(n)=0 for n<4.

%Y Cf. A113827 (prime beginning minimal n-tuple of primes in AP).

%Y Cf. A005115, A115608, A115609, A115610, A115611, A115612, A115613, A273920, A273921, A273922, A273923.

%K nonn,hard,more

%O 1,4

%A _Jean-Marc Rebert_, Jun 04 2016

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Last modified September 15 17:47 EDT 2024. Contains 375954 sequences. (Running on oeis4.)