Number of senary sequences of length n such that no two consecutive terms have distance 1.

A287806

Number of senary sequences of length n such that no two consecutive terms have distance 1.

Terms

    a(0) =1a(1) =6a(2) =26a(3) =114a(4) =500a(5) =2194a(6) =9628a(7) =42252a(8) =185422a(9) =813722a(10) =3571010a(11) =15671340a(12) =68773514a(13) =301811860a(14) =1324498252a(15) =5812546998a(16) =25508302906a(17) =111942925778a(18) =491260382084

External references