Half the number of n X 5 binary arrays with the number of 1-1 adjacencies equal to the number of 0-0 adjacencies.

A183251

Half the number of n X 5 binary arrays with the number of 1-1 adjacencies equal to the number of 0-0 adjacencies.

Terms

    a(0) =3a(1) =60a(2) =1092a(3) =29100a(4) =807261a(5) =23226996a(6) =679637064a(7) =20179029954a(8) =604725622404

External references