28076979

Appears in sequences

• Negative of numerator of y-coordinate of (2n+1)*P where P is the generator for rational points on the curve y^2 + y = x^3 - x.at n=7A028934
• Negative of numerator of y coordinate of n*P where P is the generator [0,0] for rational points on curve y^2+y = x^3-x.at n=14A028942
• a(n) = -c(n-1) * c(n-2) * c(n+3) where c(n) = A006769(n).at n=14A278314