Number of length 7+4 0..n arrays with every five consecutive terms having the maximum of some two terms equal to the minimum of the remaining three terms.

A254705

Number of length 7+4 0..n arrays with every five consecutive terms having the maximum of some two terms equal to the minimum of the remaining three terms.

Terms

    a(0) =334a(1) =9106a(2) =87892a(3) =489135a(4) =1954106a(5) =6255136a(6) =17080712a(7) =41376909a(8) =91273510a(9) =186738046a(10) =359115868a(11) =655729243a(12) =1145723346a(13) =1927361900a(14) =3136990096a(15) =4959897305a(16) =7643326974a(17) =11511895978a(18) =16985700580a(19) =24601401031a(20) =35036591722

External references