Invitation: celebrating 50 years of OEIS, 250000 sequences, and Sloane's 75th, there will be a conference at DIMACS, Rutgers, Oct 9-10 2014.
Table of n, a(n) for n=0..42.
Index entries for sequences related to necklaces
a(2n) = a(n) + 2^(n-1), a(2n+1) = 2^n. - Ralf Stephan, Nov 01 2003
Sequence in context: A240012 A094858 A029940 * A143483 A192326 A131733
Adjacent sequences: A045671 A045672 A045673 * A045675 A045676 A045677
David W. Wilson