67007

Appears in sequences

• T(n,n-1), array T given by A047020.at n=10A047023
• a(n) = 49*n^2 - 2*n.at n=36A157362
• Number of nX4 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 0 vertically.at n=6A207956
• T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 0 vertically.at n=51A207960
• Number of 7Xn 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 0 vertically.at n=3A207965
• Triangle T(n,k) read by rows: the number of semigroups of orientation-preserving partial transformations on n element with right waist k.at n=41A289714