375611domain: NAppears in sequencesMatrix square of Stirling-1 triangle A008275.at n=29A039814T(n, k) = [x^k] Sum_{k=0..n} Stirling1(n, k)*FallingFactorial(x, k), triangle read by rows, for n >= 0 and 0 <= k <= n.at n=38A325872E.g.f.: log(1 + log(1 - x))^2 / 2.at n=6A341587