147684domain: NAppears in sequencesExpansion of e.g.f. exp(log(1+x)^2).at n=8A009199Numbers k such that k * 14^k - 1 is prime.at n=13A299377Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = Sum_{j=0..n} (k*j)!* |Stirling1(n,k*j)|/j!.at n=63A357882