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A092647 Absolute value of difference between counts of uninterrupted runs of 4 primes in A092645 and A092646. 2
0, 0, 1, 5, 13, 34, 207, 349 (list; graph; refs; listen; history; internal format)
OFFSET

1,4

FORMULA

Take the absolute value of the difference between counts of runs of 4 primes congruent to 1 mod 4 and 3 mod 4.

EXAMPLE

a(4)=5 because in A092645 the count is 10 and in A092646 the count is 15. 15-10=5.

CROSSREFS

Cf. A092645 A092646.

Sequence in context: A106587 A034509 A034521 * A171262 A006561 A146845

Adjacent sequences:  A092644 A092645 A092646 * A092648 A092649 A092650

KEYWORD

more,nonn

AUTHOR

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

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Last modified February 18 00:14 EST 2012. Contains 206085 sequences.