28389

Appears in sequences

• Number of trees with n nodes and 9 leaves.at n=8A055296
• Number of prime quadruples < 10^n, where a prime quadruple means 4 successive primes {p, p', p'', p'''} with p''' = p + 8.at n=8A055738
• Number of graphical partitions of simple Eulerian graphs (partitions given by the degrees of vertices of simple (no loops or multiple edges) graphs having only vertices of even degrees) having n edges.at n=51A069831
• Number of strings of numbers x(i=1..n) in 0..4 with sum i*x(i)^4 equal to n*256.at n=11A184843
• G.f. A(x) where A000081(x) = x*A(A000081(x)).at n=22A185168
• Indices of primes in the hexanacci numbers sequence A000383.at n=29A247192
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 245", based on the 5-celled von Neumann neighborhood.at n=34A271006
• Number of unlabeled trees covering 2n nodes, half of which are leaves.at n=8A359398