1,2

Richard Choulet, Curtz-like transformation.

G.f.: f(z)=1+5*z+...=((1+z^2)/((1-z)^2*(1-3*z+2*z^2-z^3)))

a(n+5)=5*a(n+4)-9*a(n+3)+8*a(n+2)-4*a(n+1)+a(n) (n>=0) [From Richard Choulet (richardchoulet(AT)yahoo.fr), Apr 07 2009]

Sequence in context: A046787 A003295 A011853 this_sequence A006457 A115981 A083091

Adjacent sequences: A136300 A136301 A136302 this_sequence A136304 A136305 A136306

nonn

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