0,2

G.f.: A(x) = (1-x^2)/(1-x)^2 + x^2*A(x)^3.

Cf. A086626 (table), A086627 (diagonal).

Sequence in context: A127940 A006796 A006076 this_sequence A032096 A120763 A120708

Adjacent sequences: A086625 A086626 A086627 this_sequence A086629 A086630 A086631

nonn

Paul D. Hanna (pauldhanna(AT)juno.com), Jul 24 2003