87798

Appears in sequences

• Numbers k such that k and k^2 use only the digits 0, 4, 7, 8 and 9.at n=29A136959
• Number of rooted trees with n nodes such that no more than ten subtrees of the same size extend from the same node.at n=15A318804
• Number of rooted trees with n nodes such that no more than ten isomorphic subtrees extend from the same node.at n=15A318857