1268860318

Appears in sequences

• Numerators of continued fraction convergents to sqrt(5).at n=15A001077
• Numerators of continued fraction convergents to sqrt(125).at n=14A041226
• Expansion of x*(1 + x - 2*x^2) / ( 1 - 4*x^2 - x^4).at n=31A059973
• Numbers k such that 5*k^2 + 5 is a square.at n=7A075796
• Numbers m satisfying m^2 + 1 = x^2 * y^3 for positive integers x and y.at n=2A175155
• Integers b for which there exists an integer y < b such that b^2+1 divides y^4.at n=14A289390