81376

Appears in sequences

• Number of 2n-step self-avoiding walks on diamond lattice ending at point with x = 2.at n=5A001397
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 1), (0, 0, -1), (0, 1, 1), (1, 0, 1)}.at n=9A150184
• Triangle read by rows: Number of 2n-step self-avoiding walks on diamond lattice ending at point with x = 2k.at n=22A227715
• Number of unlabeled balanced rooted semi-identity trees with 2n-1 nodes and depth n.at n=25A306274
• Number of regions among all distinct circles that can be constructed from n equally spaced points along a line using only a compass.at n=23A359253