Number of (n+1)X(5+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal.
A232586
Number of (n+1)X(5+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal.
Terms
- a(0) =20a(1) =108a(2) =606a(3) =3002a(4) =14398a(5) =66950a(6) =306022a(7) =1382638a(8) =6200520a(9) =27671244a(10) =123093664a(11) =546418140a(12) =2422183000a(13) =10727201704a(14) =47478696368a(15) =210055317910a(16) =929074602120
External references
- oeis: A232586