1641150

Appears in sequences

• G.f. A(x) satisfies: Series_Reversion( A(x) + A(x)^2 ) = A(x) - A(x)^2.at n=9A277292
• G.f. A(x) satisfies: A( A( x - x^2 ) ) = x + x^2.at n=18A318008