137561

Appears in sequences

• Numerators of expansion of exp x / sin x.at n=15A007418
• Triangle of Gaussian binomial coefficients [ n,k ] for q = 19.at n=16A022183
• Triangle of Gaussian binomial coefficients [ n,k ] for q = 19.at n=19A022183
• Number of sublattices of index n in generic 5-dimensional lattice.at n=18A038992
• a(n) = n^4 + n^3 + n^2 + n + 1.at n=19A053699
• 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=4.at n=18A068021
• Numerators of coefficients in cosh(x) / sin(x) power series.at n=8A097234
• a(n) = 1 + prime(n) + prime(n)^2 + prime(n)^3 + prime(n)^4.at n=7A131992
• a(n)=(19^n - 1)/(9*2^(3 - 2*Mod[n, 2])).at n=5A152438
• a(n) = Sum_{d|n} Möbius(n/d)*d^5/phi(n).at n=18A160893
• Triangle in which row n lists the numbers of strong vertex magic total labelings of each 2-regular simple graph on 2n+1 vertices.at n=47A177741
• a(0)=0, a(1)=1, a(2n)=19*a(n), a(2n+1)=a(2n)+1.at n=31A197353
• a(n) = sigma(n^4).at n=18A202994
• a(n) = (19^n-1)/18.at n=5A218722
• Sum of the largest parts in the partitions of n into 8 parts.at n=47A308998