0,4

Shifted Jacobsthal recurrence.

O.g.f.: [(1+x^2)+(-2-3*x)/(2*x^2-1)]/3 . a(2n)=A001045(n+1). a(2n+1)=A000079(n) . - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 19 2008

Adjacent sequences: A135315 A135316 A135317 this_sequence A135319 A135320 A135321

Sequence in context: A008825 A078762 A103262 this_sequence A101137 A053021 A122700

nonn

Paul Curtz (bpcrtz(AT)free.fr), Feb 16 2008

More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 19 2008