-3388

Appears in sequences

• Difference of Stirling numbers of the first kind.at n=6A081052
• Triangle of coefficients of certain polynomials used with prime numbers as variables in the computation of the array A103728.at n=22A103718
• Stirling-like triangle by rows generated from (x-1)*(x-1)*(x-2)*(x-3)*(x-4)*...at n=33A158471
• a(1) = 1, a(2) = 3; a(n) = n^2 * Sum_{d|n, d < n} (-1)^(n/d) a(d) / d^2.at n=43A361986