Number of n element 0..2 arrays with each element the minimum of 5 adjacent elements of a random 0..2 array of n+4 elements.

A217880

Number of n element 0..2 arrays with each element the minimum of 5 adjacent elements of a random 0..2 array of n+4 elements.

Terms

    a(0) =3a(1) =9a(2) =22a(3) =46a(4) =86a(5) =148a(6) =244a(7) =402a(8) =685a(9) =1223a(10) =2263a(11) =4243a(12) =7910a(13) =14528a(14) =26274a(15) =47012a(16) =83787a(17) =149619a(18) =268568a(19) =484722a(20) =878014a(21) =1592150a(22) =2884434a(23) =5215660a(24) =9413514a(25) =16970286a(26) =30584282a(27) =55140634a(28) =99481417a(29) =179592631

External references