71083

Appears in sequences

• a(n)=numerator of the probability that (x-y)/(x+y)+(y-z)/(y+z)+(z-u)/(z+u)+ (u-x)/(u+x)>0, assuming that each random quadruple of integers (x,y,z,u), with a<=x,y,z,u<=n, is equally likely.at n=27A106199
• Expansion of psi(x^4) / f(-x) in powers of x where psi(), f() are Ramanujan theta functions.at n=41A226635