Number of (n+1) X 2 0..3 arrays with every 2 x 2 subblock summing to 6.
A183634
Number of (n+1) X 2 0..3 arrays with every 2 x 2 subblock summing to 6.
Terms
- a(0) =44a(1) =136a(2) =452a(3) =1576a(4) =5684a(5) =21016a(6) =79172a(7) =302536a(8) =1168724a(9) =4552696a(10) =17848292a(11) =70313896a(12) =278034164a(13) =1102505176a(14) =4381191812a(15) =17438411656a(16) =69494842004a(17) =277203478456
External references
- oeis: A183634