Number of permutations of 0..floor((n*7-2)/2) on odd squares of an nX7 array such that each row and column of odd squares is increasing.

A215296

Number of permutations of 0..floor((n*7-2)/2) on odd squares of an nX7 array such that each row and column of odd squares is increasing.

Terms

    a(0) =1a(1) =35a(2) =1050a(3) =210210a(4) =14294280a(5) =5703417720a(6) =577185873264

External references