-9870

Appears in sequences

• Bessel polynomial {y_n}''(-1).at n=5A065944
• Sequence is {a(5,n)}, where a(m,n) is defined at sequence A110665.at n=21A110670
• G.f. satisfies: A(x) = 1 + x*d/dx log(1 + x/A(x)).at n=6A159606