Number of length-n 0..2 arrays with no following elements larger than the first repeated value.

A267465

Number of length-n 0..2 arrays with no following elements larger than the first repeated value.

Terms

    a(0) =3a(1) =9a(2) =24a(3) =62a(4) =160a(5) =418a(6) =1112a(7) =3018a(8) =8352a(9) =23522a(10) =67240a(11) =194554a(12) =568304a(13) =1672146a(14) =4946808a(15) =14692970a(16) =43767616a(17) =130647490a(18) =390566216a(19) =1168815066a(20) =3500415888a(21) =10488664754a(22) =31439779864a(23) =94264813642a(24) =282681194720a(25) =847808703138

External references