5th binomial transform of (1,4,0,0,0,0,...).

Terms

a(0) =1a(1) =9a(2) =65a(3) =425a(4) =2625a(5) =15625a(6) =90625a(7) =515625a(8) =2890625a(9) =16015625a(10) =87890625a(11) =478515625a(12) =2587890625a(13) =13916015625a(14) =74462890625a(15) =396728515625