-474144

Appears in sequences

• Expansion of the series reversion of x*(1 + 4*x + x^2)/(1 - x)^4.at n=5A291536
• G.f. L(x,y) satisfies: L(x,y) = x * (1 + y*x*L'(x,y)) / (1 + x*L'(x,y)) where L'(x,y) = d/dx L(x,y), as a triangle read by rows.at n=43A301305