1/4 the number of (n+1) X 8 binary arrays with equal numbers of 2 X 2 subblocks with sums 1 and 3.

A184602

1/4 the number of (n+1) X 8 binary arrays with equal numbers of 2 X 2 subblocks with sums 1 and 3.

Terms

    a(0) =2880a(1) =446426a(2) =89538170a(3) =19597196907

External references