820820

Appears in sequences

• Partial sums of A007585.at n=38A051797
• Sums of rows of A077529.at n=25A077531
• Third right hand column of triangle A163934.at n=9A163935
• Number of nX5 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 0 vertically.at n=5A207714
• Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 0 vertically.at n=4A207721
• a(n) is the least integer that is 4-dimensional pyramidal in exactly n ways.at n=6A333932