52431

Appears in sequences

• Number of sets of distinct positive integers whose arithmetic mean is an integer, the largest integer of the set being n.at n=19A082550
• Numbers n such that 9*10^n + 8*R_n - 7 is prime, where R_n = 11...1 is the repunit (A002275) of length n.at n=13A103107
• L.g.f.: exp(Sum_{n>=1} a(n)*x^n/n) = 1 + x*exp(Sum_{n>=1} Lucas(n)*a(n)*x^n/n) where Lucas(n) = A000204(n).at n=6A158258
• a(n) = (4*n^3 - 12*n^2 + 14*n + 3)/3.at n=35A161703
• T(n,k) = Sum_{j=0..k} (k-j)^n * binomial(n,j).at n=26A215080