161131189369domain: NAppears in sequencesDenominators of continued fraction convergents to sqrt(343).at n=23A041649The 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 even D(n) = A264354(n).at n=35A264439