Number of nX6 0..1 arrays with every element equal to 0, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.

A301904

Number of nX6 0..1 arrays with every element equal to 0, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =6a(2) =7a(3) =40a(4) =92a(5) =532a(6) =1999a(7) =10150a(8) =46226a(9) =234484a(10) =1167106a(11) =6013755a(12) =31027951a(13) =161979950a(14) =848039052a(15) =4458470286a(16) =23481316334a(17) =123866264459a(18) =653972874084

External references