433350

Appears in sequences

• a(n) = [x^n] Product_{k=1..n} 1/(x^(2*k)*(1-x^k)^3).at n=4A258794
• a(0)=0, a(1)=1; for n>1, a(n) = n*a(n-1) - 3*a(n-2).at n=10A303224