Number of length n+5 0..2 arrays with at most two downsteps in every 5 consecutive neighbor pairs.
A255619
Number of length n+5 0..2 arrays with at most two downsteps in every 5 consecutive neighbor pairs.
Terms
- a(0) =651a(1) =1803a(2) =5088a(3) =14381a(4) =40659a(5) =114546a(6) =322078a(7) =907110a(8) =2556858a(9) =7205734a(10) =20304363a(11) =57202476a(12) =161153983a(13) =454067388a(14) =1279391559a(15) =3604760378a(16) =10156531428a(17) =28616171577a(18) =80626959391a(19) =227170254438a(20) =640061685474
External references
- oeis: A255619