836400

Appears in sequences

• Number of sublattices of index n in generic 8-dimensional lattice.at n=5A038995
• a(n) = sigma(6^(n-1)).at n=7A160869
• a(n) = Sum_{d|n} Moebius(n/d)*d^(b-1)/phi(n) for b = 9.at n=5A160908