96956

Appears in sequences

• a(n) = s(2*n) where s(0) = 0, s(1) = s(2) = 1, s(n) = abs(Sum_{k=2..n-1} (-1)^k * s(n-k) * s(k)).at n=50A072851
• Absolute row sums of triangle A104967.at n=29A104968
• Number of n X 4 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=6A302318
• Number of 7Xn 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=3A302328
• Number of (undirected) paths in the m X n king graph (triangle read by rows with m = 1..n and n = 1..).at n=8A307026
• Number of (undirected) paths in the 3 X n king graph.at n=3A339751
• Number of (undirected) paths in the 4 X n king graph.at n=2A358626
• G.f. satisfies A(x) = (1 + x)^3 + x*A(x)^2.at n=8A366695