1,6

Take the absolute value of the difference between counts of runs of 6 primes congruent to 1 mod 4 and 3 mod 4.

a(6)=13 because in A092651 the count is 127 and in A092652 the count is 140. 140-127=13.

Cf. A092651 A092652.

Sequence in context: A044532 A031074 A051878 this_sequence A067465 A166605 A054477

Adjacent sequences: A092650 A092651 A092652 this_sequence A092654 A092655 A092656

easy,more,nonn

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