61035156250domain: NAppears in sequencesExpansion of (1-3*x)/(1-5*x).at n=16A020699Pisot sequences E(2,10), L(2,10), P(2,10), T(2,10).at n=15A020729Numbers n such that n-th Pisano number = 6*n.at n=15A095687Hypotenuses for which there exist exactly 15 distinct integer triangles.at n=1A290503