1434304

Appears in sequences

• Expansion of (x+4*x^4)/(1-x-x^2-x^4-2*x^5-x^8).at n=24A270879
• a(n) = Sum_{k=0..floor(n/2)} 2^k * binomial(2*k+1,2*n-4*k).at n=18A387765