Number of (n+1)X(2+1) 0..2 arrays with row and column sums nondecreasing, and no adjacent elements equal.

A233403

Number of (n+1)X(2+1) 0..2 arrays with row and column sums nondecreasing, and no adjacent elements equal.

Terms

    a(0) =11a(1) =37a(2) =35a(3) =100a(4) =265a(5) =293a(6) =756a(7) =1937a(8) =2346a(9) =5788a(10) =14533a(11) =18598a(12) =44777a(13) =110861a(14) =147478a(15) =349309a(16) =854388a(17) =1171388a(18) =2739451a(19) =6632534a(20) =9314701a(21) =21564727a(22) =51751900a(23) =74137387a(24) =170211322a(25) =405346970a(26) =590489477a(27) =1346189954a(28) =3184156943a(29) =4705761017

External references