85904

Appears in sequences

• Triangle read by rows: T(n,k) = number of closed meander systems of order n with k<=n components.at n=33A008828
• Triangle of numerators T(n,k) in the matrix {T(n,k)/(n-k)!,n>=k>=0} that transforms diagonals of the array (A174480) of coefficients in successive iterations of x*exp(x).at n=31A174485
• Column 3 of triangle A174485.at n=4A174489
• Number of "semiperiodic" binary words of length n.at n=21A209284