29545

Appears in sequences

• Numbers n such that phi(n-1) + phi(n+1) = phi(2n).at n=15A067701
• Number of n-node rooted trees in which eight equals the maximal number of nodes in paths starting at a leaf and ending at the first branching node or at the root.at n=11A318904
• a(n) = number of subsets S of {1,2,...,n} having more than 2 elements such that (sum of least two elements of S) > difference between greatest two elements of S.at n=15A357290
• a(n) = number of isogeny classes of abelian surfaces over the finite field of order prime(n).at n=44A362198