361998

Appears in sequences

• a(n) = f(n,n) where f is given in A034261.at n=9A034267
• Triangle read by rows: T(n,r) = binomial(n,r)*binomial(2*n-3*r-4,n-2*r-2)/(n-r-1), n >= 2, r = 0..floor(n/2)-1.at n=44A259097