225432

Appears in sequences

• Number of n-member subsets of 1..2n whose elements sum to a multiple of n.at n=12A169888
• For n > 4, a(n) = a(n-1) + a(n-2) if n is even and a(n) = 3*a(n-2) + a(n-4) - a(n-5) if n is odd; a(0) = 0, a(1) = 1, a(2) = 1, a(3) = 2, and a(4) = 3.at n=23A318406