31976153111domain: NAppears in sequencesDenominators of continued fraction convergents to sqrt(281).at n=23A041529The y member of the positive proper fundamental solution (x = x2(n), y = y2(n)) of the second class for the Pell equation x^2 - D(n)*y^2 = +8 for odd D(n) = A263012(n).at n=12A264353