Number of nX4 0..1 arrays with each 1 adjacent to 3, 4 or 5 king-move neighboring 1s.
A296986
Number of nX4 0..1 arrays with each 1 adjacent to 3, 4 or 5 king-move neighboring 1s.
Terms
- a(0) =1a(1) =7a(2) =28a(3) =74a(4) =440a(5) =2514a(6) =12601a(7) =71009a(8) =401521a(9) =2216357a(10) =12389835a(11) =69428069a(12) =387643511a(13) =2166781692a(14) =12118679269a(15) =67747174495a(16) =378749710935
External references
- oeis: A296986