82682domain: NAppears in sequencesNumbers k such that k^6 == 1 (mod 7^5).at n=28A056103Approximations up to 7^n for one of the three 7-adic integers (-1)^(1/3).at n=6A212153Approximations up to 7^n for one of the three 7-adic integers (-1)^(1/3).at n=7A212153