166652

Appears in sequences

• G.f. is the polynomial (Product_{k=1..16} (1 - x^(3*k)))/(1-x)^16.at n=7A162636
• a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/2)} binomial(n-1,2*k) * a(k).at n=17A352044