1,1

a(n+1) = a(n) converted to base 8 from base 2 (written in base 10).

Number of disjunctive-normal forms of n-1 variables (either with x, or x-negated or without x). - Labos E. (labos(AT)ana.sote.hu), Jul 24 2003

a(n) = a(n-1)^3.

a(n) = A000079(A000244(n-1)).

Sequence in context: A000890 A033542 A098870 this_sequence A076985 A120802 A120838

Adjacent sequences: A023362 A023363 A023364 this_sequence A023366 A023367 A023368

nonn

David W. Wilson (davidwwilson(AT)comcast.net)