6442418176

Appears in sequences

• Sum of 2^n, ..., 2^(n+1) - 1.at n=16A010036
• Expansion of x*(1+5*x)/((1+2*x+1)*(1-4*x)).at n=17A117110
• a(n) = 2^n - A005418(n).at n=32A136488