Triangle T(n,k) defined by Sum_{k=1..n} T(n,k)*u^k*x^n/n! = Product_{j>0} ( exp(x^j/(1 - x^j)) )^u.

Terms

a(0) =1a(1) =4a(2) =1a(3) =12a(4) =12a(5) =1a(6) =72a(7) =96a(8) =24a(9) =1a(10) =240a(11) =840a(12) =360a(13) =40a(14) =1a(15) =2880a(16) =7200a(17) =4920a(18) =960a(19) =60a(20) =1a(21) =10080a(22) =70560a(23) =65520a(24) =19320a(25) =2100a(26) =84a(27) =1a(28) =161280a(29) =745920