-6980

Appears in sequences

• E.g.f.: A(x) = Product_{n>=0} { exp(x)*[Sum_{k=0..n} (-x)^k/k! ] }.at n=8A129483
• Expansion of Product_{k>=0} 1/(1 + x^(4*k+3))^(4*k+3).at n=33A285311