741636

Appears in sequences

• Theta series of extremal 3-modular even lattice in dimension 28.at n=4A034624
• G(n,1) with n index G(n,i)=n*(G(n,i-1)+G(n,i-2))=(a^i-b^i)*d where d=sqrt(n*(n+4)); a=(n+d)/2; b=(n-d)/2.at n=9A170930
• a(n) = Sum_{k=0..floor(n/4)} 2^k * 3^(n-3*k) * binomial(n-3*k+6,6) * binomial(2*(n-3*k),2*k).at n=6A391724