62331domain: NAppears in sequencesNumbers k such that the period of the continued fraction for sqrt(k) contains exactly 29 ones.at n=28A031797Expansion of Product_{k>=1} 1/(1 - x^prime(k))^A056768(k).at n=44A321508a(n) = 4*p(n-1)*p(n+1) - p(n)^2, where p(k) = k-th prime.at n=32A327447