Number of (n+1) X (4+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 6 (constant-stress 1 X 1 tilings).

A235306

Number of (n+1) X (4+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 6 (constant-stress 1 X 1 tilings).

Terms

    a(0) =1554a(1) =2918a(2) =5042a(3) =10790a(4) =21090a(5) =49574a(6) =107186a(7) =269222a(8) =629154a(9) =1656998a(10) =4101362a(11) =11181350a(12) =28857570a(13) =80708774a(14) =214757426a(15) =612173222a(16) =1666192674a(17) =4817289638a(18) =13336967282a(19) =38965654310a(20) =109297879650a(21) =321784561574a(22) =911836050866

External references