50995

Appears in sequences

• Transform of the finite sequence (1, 0, -1) by the T_{1,0} transformation (see link).at n=13A159336
• Number of 0..4 arrays x(0..n+1) of n+2 elements without any interior element greater than both neighbors.at n=5A200882
• T(n,k) is the number of 0..k arrays x(0..n+1) of n+2 elements without any interior element greater than both neighbors.at n=41A200886
• Number of 0..n arrays x(0..7) of 8 elements without any interior element greater than both neighbors.at n=3A200891
• Number of nX1 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor.at n=8A203184
• Number of 2 X 2 matrices having all terms in {1,...,n} and determinant d satisfying -n < d < n.at n=24A211070
• a(n) = a(n-2)+a(n-3) with a(1)=2 a(2)=1 a(3)=0.at n=40A276276