Number of (n+1) X 3 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock unequal to the number of counterclockwise edge increases.
A205817
Number of (n+1) X 3 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock unequal to the number of counterclockwise edge increases.
Terms
- a(0) =66a(1) =216a(2) =714a(3) =2430a(4) =8274a(5) =28242a(6) =96402a(7) =329130a(8) =1123698a(9) =3836538a(10) =13098738a(11) =44721882a(12) =152690034a(13) =521316378a(14) =1779885426a(15) =6076908954a(16) =20747864946a(17) =70837641882a(18) =241854837618a(19) =825744066714
External references
- oeis: A205817