Number of n X 6 0..1 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.

A223836

Number of n X 6 0..1 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.

Terms

    a(0) =22a(1) =148a(2) =503a(3) =1286a(4) =2884a(5) =5992a(6) =11749a(7) =21912a(8) =39064a(9) =66854a(10) =110269a(11) =175938a(12) =272468a(13) =410812a(14) =604669a(15) =870916a(16) =1230072a(17) =1706794a(18) =2330405a(19) =3135454a(20) =4162308a(21) =5457776a(22) =7075765a(23) =9077968a(24) =11534584a(25) =14525070a(26) =18138925a(27) =22476506a(28) =27649876a(29) =33783684

External references