48240

Appears in sequences

• Number of 2n-step self-avoiding cycles on the cubic lattice.at n=4A001413
• Number of 2n-step self-avoiding closed paths (or cycles) on the 3-dimensional cubic lattice.at n=4A010567
• Number of 2n-bead balanced binary strings of fundamental period 2n, rotationally equivalent to reversed complement.at n=12A045664
• a(n) = A064835(n)/2.at n=25A064836
• Number of 4-step self-avoiding walks on an n X n square summed over all starting positions.at n=37A188149
• Expansion of Product_{k>=1} (1+x^k)^(k!).at n=8A261052
• Triangle read by rows: T(n,k) is the number of k-element equivalence classes of closed meanders with 2n points.at n=27A339460