Number of (n+1) X 2 0..3 arrays with no 2 X 2 subblock having the number of clockwise edge increases equal to the number of counterclockwise edge increases in its adjacent leftward or upward neighbors.
A205937
Number of (n+1) X 2 0..3 arrays with no 2 X 2 subblock having the number of clockwise edge increases equal to the number of counterclockwise edge increases in its adjacent leftward or upward neighbors.
Terms
- a(0) =256a(1) =1776a(2) =12712a(3) =91440a(4) =656272a(5) =4711264a(6) =33827496a(7) =242859696a(8) =1743558448a(9) =12517828752a(10) =89871316488a(11) =645223555056
External references
- oeis: A205937