Number of (n+1) X 3 0..2 arrays with every 2 X 3 or 3 X 2 subblock having exactly three counterclockwise and three clockwise edge increases.
A206144
Number of (n+1) X 3 0..2 arrays with every 2 X 3 or 3 X 2 subblock having exactly three counterclockwise and three clockwise edge increases.
Terms
- a(0) =60a(1) =246a(2) =1122a(3) =5118a(4) =23346a(5) =106494a(6) =485778a(7) =2215902a(8) =10107954a(9) =46107966a(10) =210323922a(11) =959403678a(12) =4376370546a(13) =19963045374a(14) =91062485778a(15) =415386338142
External references
- oeis: A206144