158573domain: 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 61.at n=5A031649Number of integer partitions of the n-th squarefree number using squarefree numbers.at n=38A303365Prime numbersat n=14566