Number of n X 4 binary arrays with some element plus some horizontally, vertically, diagonally or antidiagonally adjacent neighbor totalling two no more than once.

A268777

Number of n X 4 binary arrays with some element plus some horizontally, vertically, diagonally or antidiagonally adjacent neighbor totalling two no more than once.

Terms

    a(0) =13a(1) =65a(2) =316a(3) =1462a(4) =6383a(5) =27531a(6) =115391a(7) =478849a(8) =1957904a(9) =7940136a(10) =31916445a(11) =127480373a(12) =506131101a(13) =1999695453a(14) =7865869056a(15) =30823236470a(16) =120372357259a(17) =468663337303

External references