1,2

Richard Choulet, Curtz-like transformation.

G.f.: f(z)=1+2*z+...=((1-z)^2*(1-sqrt(1-4*z)))/(2*z*(1-3*z+2*z^2-z^3))

Adjacent sequences: A136301 A136302 A136303 this_sequence A136305 A136306 A136307

Sequence in context: A052963 A036908 A126220 this_sequence A075496 A114177 A103140

nonn

Richard Choulet (richardchoulet(AT)yahoo.fr), Mar 22 2008