229504

Appears in sequences

• a(n) = n*2^n - 2^(n/2)*sin(Pi*n/4).at n=14A099855
• The Wiener index of the binomial tree of order n.at n=8A192021
• Expansion of (x+2*x^2) / (1-2*x-2*x^2+2*x^3).at n=14A285186