Number of (n+1) X (1+1) 0..2 arrays with every 2 X 2 subblock summing to 1 2 3 4 5 6 or 7.
A251366
Number of (n+1) X (1+1) 0..2 arrays with every 2 X 2 subblock summing to 1 2 3 4 5 6 or 7.
Terms
- a(0) =79a(1) =695a(2) =6113a(3) =53769a(4) =472943a(5) =4159927a(6) =36590017a(7) =321839625a(8) =2830847119a(9) =24899654327a(10) =219013164449
External references
- oeis: A251366