430073domain: NAppears in sequencesLeast of five consecutive numbers which are cubefree and not squarefree, i.e., {k, k+1, k+2, k+3, k+4} are in A067259.at n=13A071124Odd numbers k which satisfy the congruence 5^(2k-1) == 3^(2k-1) (mod 2k).at n=9A215738