Number of length n+7 0..2 arrays with at most two downsteps in every n consecutive neighbor pairs.

A255629

Number of length n+7 0..2 arrays with at most two downsteps in every n consecutive neighbor pairs.

Terms

    a(0) =6561a(1) =19683a(2) =59049a(3) =152106a(4) =322078a(5) =602886a(6) =1047141a(7) =1706242a(8) =2653107a(9) =3977859a(10) =5790140a(11) =8221629a(12) =11428785a(13) =15595837a(14) =20938044a(15) =27705249a(16) =36185752a(17) =46710528a(18) =59657817a(19) =75458114a(20) =94599588a(21) =117633960a(22) =145182871a(23) =177944772a(24) =216702369

External references