A Binet type formula from a polynomial whose coefficient expansion gives a tribonacci used as its first derivative InverseZtransform: A000073.

A116573

A Binet type formula from a polynomial whose coefficient expansion gives a tribonacci used as its first derivative InverseZtransform: A000073.

Terms

    a(0) =1a(1) =0a(2) =4a(3) =17a(4) =1a(5) =82a(6) =324a(7) =49a(8) =961a(9) =5185a(10) =2501a(11) =5776a(12) =57600a(13) =54290a(14) =15625a(15) =497026a(16) =801025a(17) =1a(18) =3437317a(19) =9120400a(20) =1256641a(21) =18714277a(22) =85766122a(23) =38850289a(24) =72999937

External references