87830

Appears in sequences

• a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ... + a(n-3)*a(3) for n >= 4, with initial terms 3, -2, 1, 3.at n=13A025261
• Sum of the odd parts in the partitions of n into 9 parts.at n=41A309657
• Number of non-intersecting loops starting at (0,0) on the n X n torus consisting of steps up and to the right.at n=5A324603
• Triangle read by rows: T(n,k) is the number of non-intersecting loops starting at (0,0) on the n X k torus consisting of steps up and to the right, 1 <= k <= n.at n=20A324604