Number of n X 6 0..2 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.

A224260

Number of n X 6 0..2 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.

Terms

    a(0) =148a(1) =4102a(2) =40182a(3) =240829a(4) =1122522a(5) =4480391a(6) =15921905a(7) =51343083a(8) =152072846a(9) =417672794a(10) =1072431538a(11) =2592681873a(12) =5938784236a(13) =12959932409a(14) =27074244297a(15) =54373767111a(16) =105367428574a(17) =197658533498a(18) =359961664018a(19) =638001956409

External references