151599domain: NAppears in sequencesTriangle where T(n,k) = n!/(n-k)!*[x^k] ( x/(2*x + log(1-x)) )^(n+1), for n>=k>=0, read by rows.at n=40A118788Composite Flavius' numbers (A000960) whose prime factors are again Flavius' numbers.at n=16A181489