618870domain: NAppears in sequencesTriangle of B-analogs of Stirling numbers of the second kind.at n=49A039755Triangle of B-analogs of Stirling numbers of 2nd kind.at n=50A039756Column k=4 of triangle A039755, Sheffer(exp(x), (exp(2*x) - 1)/2).at n=5A286719a(n) = [x^n] Product_{k=1..n} 1/(1 - (2*k-1) * x).at n=5A348087