305987

Appears in sequences

• Numerators of continued fraction convergents to sqrt(491).at n=10A041936
• x-value of the smallest solution to x^2 - p*y^2 = 2*(-1)^((p+1)/4), p = A002145(n).at n=48A306529
• Fundamental nonnegative solution x(n) of the Diophantine equation x^2 - A045339(n)*y^2 = -2, for n >= 1.at n=24A339881