98566144

Appears in sequences

• Expansion of (1 + x - 2*x^2)/(1 - 2*x)^2.at n=22A052951
• a(n) is the smallest positive integral multiple of 2^n not in the range of the Euler phi function.at n=21A181662
• a(n) = Sum_{k=0..n} binomial(n, k)*2^(n^2-k*(n-k)).at n=5A360820