Number of length n+3 0..7 arrays with no four elements in a row with pattern abab (with a!=b) and new values 0..7 introduced in 0..7 order.

A243043

Number of length n+3 0..7 arrays with no four elements in a row with pattern abab (with a!=b) and new values 0..7 introduced in 0..7 order.

Terms

    a(0) =14a(1) =47a(2) =179a(3) =760a(4) =3545a(5) =17955a(6) =97849a(7) =569236a(8) =3508656a(9) =22742717a(10) =153854313a(11) =1078282250a(12) =7775488348a(13) =57340807380a(14) =430253623025

External references