105306075

Appears in sequences

• a(n) = 6*(2*n+1)! / ((n!)^2*(n+3)).at n=13A007946
• a(n) = 6*(n+1)!/((3+floor(n/2))*(floor(n/2)!)^2).at n=26A242986
• E.g.f. A(x) satisfies A(x) = exp( arcsinh(x * A(x)^3) ).at n=7A385441