960800

Appears in sequences

• Gaussian binomial coefficients [ n,7 ] for q = 7.at n=1A022236
• a(n) = (7^n - 1)/6.at n=8A023000
• a(n) = Sum_{k=0..n} n^k.at n=7A031973
• Number of sublattices of index n in generic 8-dimensional lattice.at n=6A038995
• Numbers that are repdigits in base 7.at n=43A048332
• a(n) = n^7 + n^6 + n^5 + n^4 + n^3 + n^2 + n + 1.at n=7A053717
• Sum of the divisors of n^n (A000312).at n=7A062727
• 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=7.at n=6A068024
• Numbers of the form (7^{mr}-1)/(7^r-1) for positive integers m, r.at n=16A076286
• Triangle read by rows: T(n,k) = (n+1,k)-th element of (M^7-M)/6, where M is the infinite lower Pascal's triangle matrix, 1<=k<=n.at n=28A096041
• Modulo 2 binomial transform of 7^n.at n=7A100310
• Triangle read by rows: T(n,k) = value of the n-th repunit in base (k+1) representation, 1<=k<=n.at n=33A125118
• Number of monomials in discriminant of polynomial x^n + a_{n-2} x^{n-2} + ... + a_0.at n=11A138800
• a(n) = Sum_{d|n} Moebius(n/d)*d^(b-1)/phi(n) for b = 9.at n=6A160908
• Square array T(n,k) read by antidiagonal upwards in which column k lists the partial sums of the powers of the k-th prime, n >= 0, k >= 1.at n=58A319076