Number of length 3+3 0..n arrays with every four consecutive terms having the maximum of some two terms equal to the minimum of the remaining two terms.

A249709

Number of length 3+3 0..n arrays with every four consecutive terms having the maximum of some two terms equal to the minimum of the remaining two terms.

Terms

    a(0) =20a(1) =125a(2) =440a(3) =1153a(4) =2524a(5) =4893a(6) =8688a(7) =14433a(8) =22756a(9) =34397a(10) =50216a(11) =71201a(12) =98476a(13) =133309a(14) =177120a(15) =231489a(16) =298164a(17) =379069a(18) =476312a(19) =592193a(20) =729212a(21) =890077a(22) =1077712a(23) =1295265a(24) =1546116a(25) =1833885a(26) =2162440a(27) =2535905a(28) =2958668a(29) =3435389

External references