91328

Appears in sequences

• Array read by antidiagonals: T(n,k) = number of n-step knight's tours on a (k+2)X(k+2) board summed over all starting positions.at n=50A186851
• Number of 6-step knight's tours on an (n+2) X (n+2) board summed over all starting positions.at n=4A186855
• G.f. A(x) satisfies A(x) = 1/( 1 - x*(A(x) + A(2*x))^2 ).at n=4A385648