3584064

Appears in sequences

• Number of walks on square lattice that start and end at origin after 2n steps, not touching origin at intermediate stages.at n=7A054474
• Triangular array read by rows. T(n,k) is the number of square lattice walks that start and end at the origin after 2n steps having k primitive loops; n>=1, 1<=k<=n.at n=21A227997
• Number A(n,k) of k-dimensional cubic lattice walks with 2n steps from origin to origin and avoiding early returns to the origin; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=52A361397