Number of nX1 binary arrays with the number of 0-1 adjacencies equal to the number of 0-0 adjacencies.

A183256

Number of nX1 binary arrays with the number of 0-1 adjacencies equal to the number of 0-0 adjacencies.

Terms

    a(0) =2a(1) =1a(2) =3a(3) =3a(4) =7a(5) =8a(6) =17a(7) =26a(8) =55a(9) =89a(10) =170a(11) =298a(12) =585a(13) =1059a(14) =1988a(15) =3640a(16) =6943a(17) =12990a(18) =24469a(19) =45663a(20) =86454a(21) =163324a(22) =309092a(23) =582651a(24) =1103457a(25) =2092206a(26) =3971963a(27) =7529743a(28) =14293584a(29) =27163872

External references