Number of nX5 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A300503
Number of nX5 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =6a(2) =6a(3) =32a(4) =56a(5) =208a(6) =546a(7) =2006a(8) =5835a(9) =18466a(10) =58308a(11) =186335a(12) =582625a(13) =1860566a(14) =5858450a(15) =18630807a(16) =58838581a(17) =186793554a(18) =590956811a(19) =1873885918a(20) =5932477246a(21) =18802162085a(22) =59546364960a(23) =188676223980a(24) =597626466721
External references
- oeis: A300503