a(n) = [n]_phi! + [n]_{1-phi}!, where [n]_q! is the q-factorial, phi = (1+sqrt(5))/2.

A274983

a(n) = [n]_phi! + [n]_{1-phi}!, where [n]_q! is the q-factorial, phi = (1+sqrt(5))/2.

Terms

    a(0) =2a(1) =2a(2) =3a(3) =14a(4) =130a(5) =2120a(6) =58120a(7) =2636360a(8) =196132320a(9) =23805331920

External references