A093397 Absolute value of difference between counts of uninterrupted runs of single nonprimes in A093183 and A093184.

0, 1, 2, 6, 9, 31, 88, 205, 1636, 2884, 4569, 30270, 14874

Offset

1,3

Links

Table of n, a(n) for n=1..13.

Formula

Take the absolute value of differences between counts of runs of single nonprimes congruent to 1 mod 4 and 3 mod 4

Example

a(3)=2 because in A093183 the count is 74 and in A093184 the count is 76. 76-74=2.

Crossrefs

Cf. A093183 A093184 A092636 A092637 A092638.

Sequence in context: A103019 A101823 A242421 * A332066 A082459 A129831

Adjacent sequences: A093394 A093395 A093396 * A093398 A093399 A093400

Keyword

nonn,more

Author

Enoch Haga, Mar 30 2004

Extensions

a(9)-a(13) from Robert Price, May 30 2019

Status

approved