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A092648 Number of consecutive prime runs of 5 primes congruent to 1 mod 4 below 10^n. 2

%I #10 Mar 18 2018 17:26:11

%S 0,0,0,3,36,344,3491,32628,300541,2771091,25737994

%N Number of consecutive prime runs of 5 primes congruent to 1 mod 4 below 10^n.

%F Generate the prime sequence with primes labeled 1 mod 4 or 3 mod 4. Add count of primes to sequence if just 5 primes occur before interruption by a prime congruent to 3 mod 4.

%e a(6)=344 because 344 sets of 5 primes occur below 10^6, each run interrupted by a prime congruent to 3 mod 4.

%Y Cf. A092649, A092650.

%K more,nonn

%O 1,4

%A _Enoch Haga_, Mar 02 2004

%E a(9)-a(11) from _Chai Wah Wu_, Mar 18 2018

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Last modified April 23 22:36 EDT 2024. Contains 371917 sequences. (Running on oeis4.)