92950

Appears in sequences

• a(n) = C(n)*(8*n+1) where C(n) = Catalan numbers (A000108).at n=8A050478
• Expansion of (1+6x)/(1-x)^10.at n=8A055994
• Number of quasi-triominoes in an n X n bounding box.at n=27A094170
• G.f.: A(x) = exp( Sum_{n>=1} A179115(n)*x^n/n ), where A179115(n) = Sum_{d|n} phi(d^tau(d)).at n=12A179114
• a(0) = 0; a(n) = C(2*n-2,n-1)*(n^2-2*n+2)/n for n >= 1.at n=9A180266