Bessel polynomial
From specialfunctionswiki
The Bessel polynomials are defined by $$y_n(x) = {}_2F_0 \left( -n, 1+n;-; -\dfrac{1}{2}x \right).$$
The Bessel polynomials are defined by $$y_n(x) = {}_2F_0 \left( -n, 1+n;-; -\dfrac{1}{2}x \right).$$