Number of (n+1) X 6 0..2 arrays with the sums of 2 X 2 subblocks nondecreasing rightwards and downwards.

A204227

Number of (n+1) X 6 0..2 arrays with the sums of 2 X 2 subblocks nondecreasing rightwards and downwards.

Terms

    a(0) =49284a(1) =2173565a(2) =87487117a(3) =2019310610a(4) =45791699846a(5) =687853333430

External references