2613660

Appears in sequences

• Triangle of Gaussian binomial coefficients [ n,k ] for q = 19.at n=22A022183
• Triangle of Gaussian binomial coefficients [ n,k ] for q = 19.at n=26A022183
• Number of sublattices of index n in generic 6-dimensional lattice.at n=18A038993
• a(n) = 111111 in base n.at n=18A053700
• 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=5.at n=18A068022
• a(n) = 1 + prime(n) + prime(n)^2 + prime(n)^3 + prime(n)^4 + prime(n)^5.at n=7A131993
• a(n) = Sum_{d|n} Moebius(n/d)*d^(b-1)/phi(n) for b = 7.at n=18A160895
• a(n) = sigma(n^5).at n=18A203556
• a(n) = (19^n-1)/18.at n=6A218722