978405

Appears in sequences

• Sum of 6th powers: 0^6 + 1^6 + 2^6 + ... + n^6.at n=9A000540
• a(n) = 1^n + 2^n + ... + 9^n.at n=6A001556
• a(n) = Sum_{k = 1..n} k^phi(n), where phi(n) = A000010(n).at n=8A235137
• Number of permutations of [n] whose lengths of increasing runs are triangular numbers.at n=11A317130