503805954

Appears in sequences

• G.f.: 1 = ...(((1/(1-x) - a(1)*0!*x )^2 - a(2)*1!*x^2 )^3 - a(3)*2!*x^3 )^4 - a(4)*3!*x^4 )^5 -..., an infinite series of nested powers.at n=15A274964