77434

Appears in sequences

• Walks of length n on the x-axis using steps {1,-1} and visiting no point more than twice.at n=30A212585
• Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=6A300934
• Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=4A300936