1,1

Richard Choulet, Curtz-like transformation.

G.f.: f(z)=3+8*z+...=(3-z+2*z^2)/(1-3*z+2*z^2-z^3)

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

Sequence in context: A048492 A006776 A050231 this_sequence A026712 A050232 A050233

Adjacent sequences: A136302 A136303 A136304 this_sequence A136306 A136307 A136308

nonn

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