883708281

Appears in sequences

• Number of sublattices of index n in generic 9-dimensional lattice.at n=12A038996
• Z(S_m; sigma[1](n), sigma[2](n),..., sigma[m](n)) where Z(S_m; x_1,x_2,...,x_m) is the cycle index of the symmetric group S_m and sigma[k](n) is the sum of k-th powers of divisors of n; m=8.at n=12A068025
• Partial sums of powers of 13 (A001022).at n=8A091030
• a(n) = Sum_{j=0..8} n^j.at n=13A102909
• a(n)=(13^n - 1)/(3*2^(3 - Mod[n, 2])).at n=9A152436
• a(n) = Sum_{d|n} Moebius(n/d)*d^(b-1)/phi(n) for b = 10.at n=12A160953