Number of (n+1) X (4+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the maximum of its antidiagonal elements.

A251133

Number of (n+1) X (4+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the maximum of its antidiagonal elements.

Terms

    a(0) =919a(1) =2264a(2) =4110a(3) =8008a(4) =14753a(5) =27738a(6) =51679a(7) =97758a(8) =186223a(9) =359276a(10) =699161a(11) =1372028a(12) =2707973a(13) =5368806a(14) =10675899a(15) =21273570a(16) =42448163a(17) =84773896a(18) =169396869a(19) =338610768a(20) =677000585a(21) =1353737746a(22) =2707162679a(23) =5413957638a(24) =10827484663a(25) =21654469188

External references