288000000

Appears in sequences

• Sum of the digits of all n-digit numbers.at n=6A078761
• a(n) is the number of shapes of balanced trees with constant branching factor 6 and n nodes. The node is balanced if the size, measured in nodes, of each pair of its children differ by at most one node.at n=24A131892
• a(n) is the number of shapes of balanced trees with constant branching factor 6 and n nodes. The node is balanced if the size, measured in nodes, of each pair of its children differ by at most one node.at n=26A131892