Unsigned member r=-20 of the family of Chebyshev sequences S_r(n) defined in A092184.

A099278

Unsigned member r=-20 of the family of Chebyshev sequences S_r(n) defined in A092184.

Terms

    a(0) =0a(1) =1a(2) =20a(3) =441a(4) =9680a(5) =212521a(6) =4665780a(7) =102434641a(8) =2248896320a(9) =49373284401

External references