Number of (n+1)X(2+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order.
A239151
Number of (n+1)X(2+1) 0..3 arrays with no element equal to all horizontal neighbors or unequal to all vertical neighbors, and new values 0..3 introduced in row major order.
Terms
- a(0) =2a(1) =2a(2) =55a(3) =208a(4) =2778a(5) =17050a(6) =166531a(7) =1221727a(8) =10652903a(9) =83558723a(10) =698912193a(11) =5620874008a(12) =46297856418a(13) =375826633534
External references
- oeis: A239151