Half the number of (n+1) X 2 0..2 arrays with no 2 X 2 subblock having sum 4.
A183784
Half the number of (n+1) X 2 0..2 arrays with no 2 X 2 subblock having sum 4.
Terms
- a(0) =31a(1) =216a(2) =1500a(3) =10428a(4) =72468a(5) =503676a(6) =3500532a(7) =24329052a(8) =169088148a(9) =1175174460a(10) =8167536180a(11) =56764911132a(12) =394519788756
External references
- oeis: A183784