441121domain: NPropertiesPrimalityPrimeyesAppears in sequencesNumbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 88.at n=5A031676a(n) = 16*n^3 + 10*n^2 + 4*n + 1.at n=30A272130Prime numbersat n=37032