529255

Appears in sequences

• Denominators of continued fraction convergents to sqrt(725).at n=9A042397
• a(n) = n^4 - 3*n^2 + 1.at n=27A057722
• Chebyshev polynomials S(n,27) with Diophantine property.at n=4A097781
• Generalized Markoff numbers: largest number a in a 5-tuple a >= b >= c >= d >= e satisfying the Markoff(5) equation a^2 + b^2 + c^2 + d^2 + e^2 = 4*a*b*c*d*e.at n=27A229241