-127702575

Appears in sequences

• Expansion of e.g.f.: exp(arcsinh(x)+log(x+1))=1+2*x+3/2!*x^2+3/3!*x^3-3/4!*x^4-15/5!*x^5...at n=13A013069
• Denominators q[ n ] of convergents to Stern's non-simple continued fraction for Pi/2.at n=11A046126
• a(n) = (-1)^n*Product_{k=1..n} (2*k + 1)*(2*k - 3).at n=6A380612