-4001

Appears in sequences

• Numerators of the coefficients of a power series for the canonical half-exponential function.at n=9A091736
• Inverse of coefficient array for polynomials P(n,x)=x*P(n-1,x)+floor(n^2/4)*P(n-2,x), P(0,x)=1,P(1,x)=x.at n=48A178117
• Expansion of Product_{k>=1} (1 - k^2*x^k).at n=12A292164