Number of length n+4 0..3 arrays with every five consecutive terms having the maximum of some two terms equal to the minimum of the remaining three terms.
A254693
Number of length n+4 0..3 arrays with every five consecutive terms having the maximum of some two terms equal to the minimum of the remaining three terms.
Terms
- a(0) =464a(1) =1116a(2) =2764a(3) =6808a(4) =16276a(5) =37204a(6) =87892a(7) =211672a(8) =512684a(9) =1241154a(10) =2987260a(11) =7209620a(12) =17496932a(13) =42616826a(14) =103975836a(15) =253892100a(16) =620762656a(17) =1520766742a(18) =3732847376a(19) =9175497666a(20) =22579411156a(21) =55623783944a(22) =137178824664a(23) =338676930240
External references
- oeis: A254693