Number of length n+3 0..7 arrays with no four elements in a row with pattern abba (possibly a=b) and new values 0..7 introduced in 0..7 order.
A243032
Number of length n+3 0..7 arrays with no four elements in a row with pattern abba (possibly a=b) and new values 0..7 introduced in 0..7 order.
Terms
- a(0) =13a(1) =43a(2) =163a(3) =694a(4) =3252a(5) =16552a(6) =90634a(7) =529587a(8) =3276946a(9) =21309360a(10) =144513814a(11) =1014502427a(12) =7321836322a(13) =54000875033a(14) =404962560633
External references
- oeis: A243032