Number of (2+1) X (n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally.
A232910
Number of (2+1) X (n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally.
Terms
- a(0) =4a(1) =34a(2) =320a(3) =2958a(4) =27692a(5) =250934a(6) =2338508a(7) =21159320a(8) =192619880a(9) =1767181410a(10) =16165706444a(11) =147550684090
External references
- oeis: A232910