Maximum number of connections for a 3 X n rectangle.

A379393

Maximum number of connections for a 3 X n rectangle.

Terms

    a(0) =1a(1) =6a(2) =72a(3) =277a(4) =1910a(5) =8657a(6) =27442a(7) =97132a(8) =295752a(9) =967914a(10) =2922814

External references