Number of nX4 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 3 1s.
A295093
Number of nX4 0..1 arrays with each 1 horizontally or vertically adjacent to 1 or 3 1s.
Terms
- a(0) =4a(1) =24a(2) =114a(3) =578a(4) =2859a(5) =14187a(6) =70982a(7) =353880a(8) =1763742a(9) =8792075a(10) =43834726a(11) =218552639a(12) =1089593715a(13) =5432145667a(14) =27082226021a(15) =135020029240a(16) =673148618666
External references
- oeis: A295093