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A092655 Number of consecutive prime runs of 7 primes congruent to 3 mod 4 below 10^n. 2
0, 0, 1, 1, 6, 56, 575, 5427 (list; graph; refs; listen; history; internal format)
OFFSET

1,5

FORMULA

Generate the prime sequence with primes labeled 1 mod 4 or 3 mod 4. Add count of primes to sequence if just 7 primes occur before interruption by a prime congruent to 1 mod 4.

EXAMPLE

a(5)=6 because 6 sets of 7 primes occur below 10^5, each run interrupted by a prime congruent to 1 mod 4.

CROSSREFS

Cf. A092654 A092656.

Sequence in context: A183615 A181589 A093142 * A099140 A048348 A199755

Adjacent sequences:  A092652 A092653 A092654 * A092656 A092657 A092658

KEYWORD

more,nonn

AUTHOR

Enoch Haga (Enokh(AT)comcast.net), Mar 02 2004

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Last modified February 14 06:42 EST 2012. Contains 205574 sequences.