Number of connected spanning subgraphs in 3 X n grid.
A158453
Number of connected spanning subgraphs in 3 X n grid.
Terms
- a(0) =1a(1) =23a(2) =431a(3) =7857a(4) =142625a(5) =2587279a(6) =46929343a(7) =851213073a(8) =15439417633a(9) =280042119887
External references
- oeis: A158453