Number of length 6+3 0..n arrays with every four consecutive terms having the maximum of some two terms equal to the minimum of the remaining two terms.
A249712
Number of length 6+3 0..n arrays with every four consecutive terms having the maximum of some two terms equal to the minimum of the remaining two terms.
Terms
- a(0) =52a(1) =659a(2) =3440a(3) =11925a(4) =32500a(5) =75495a(6) =156416a(7) =297321a(8) =528340a(9) =889339a(10) =1431728a(11) =2220413a(12) =3335892a(13) =4876495a(14) =6960768a(15) =9730001a(16) =13350900a(17) =18018403a(18) =23958640a(19) =31432037a(20) =40736564a(21) =52211127a(22) =66239104a(23) =83252025a(24) =103733396a(25) =128222667
External references
- oeis: A249712