Number of length 4+2 0..n arrays with the medians of every three consecutive terms nondecreasing.

A250143

Number of length 4+2 0..n arrays with the medians of every three consecutive terms nondecreasing.

Terms

    a(0) =41a(1) =391a(2) =1959a(3) =6902a(4) =19446a(5) =46914a(6) =100962a(7) =199023a(8) =365959a(9) =635921a(10) =1054417a(11) =1680588a(12) =2589692a(13) =3875796a(14) =5654676a(15) =8066925a(16) =11281269a(17) =15498091a(18) =20953163a(19) =27921586a(20) =36721938a(21) =47720630a(22) =61336470a(23) =78045435a(24) =98385651a(25) =122962581

External references