Number of (n+1) X 3 0..2 arrays with the number of clockwise edge increases in 2 X 2 subblocks nondecreasing, and counterclockwise edge increases nonincreasing, rightwards and downwards.
A206536
Number of (n+1) X 3 0..2 arrays with the number of clockwise edge increases in 2 X 2 subblocks nondecreasing, and counterclockwise edge increases nonincreasing, rightwards and downwards.
Terms
- a(0) =399a(1) =2577a(2) =14781a(3) =91674a(4) =594348a(5) =3902463a(6) =25900263a(7) =172835859a(8) =1158343314a(9) =7783336557a(10) =52398118053a(11) =353178544149
External references
- oeis: A206536