115192

Appears in sequences

• Expansion of g.f. (1 +x^2)/((1-x)^2*(1 -3*x +2*x^2 -x^3)).at n=12A136303
• G.f.: sqrt( Sum_{n>=0} 4^n*x^(n^2) ).at n=13A227293
• a(n) = binomial((n+1)^2, n) * (2*n+1) / (n+1)^2 for n>=0.at n=5A227469