Number of primitive (period n) step cyclic shifted sequence structures using exactly six different symbols.

A056448

Number of primitive (period n) step cyclic shifted sequence structures using exactly six different symbols.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =1a(6) =1a(7) =18a(8) =59a(9) =630a(10) =1681a(11) =28866a(12) =60083a(13) =757576a(14) =3514504a(15) =21423984a(16) =64372109a(17) =1024999170a(18) =2026631203a(19) =26920954613a(20) =105501588414a(21) =742299897060

External references