6240366domain: NAppears in sequencesSmallest integer k such that k or one of its left substrings (or prefixes, regarded as an integer) is divisible by any integer from {1,2,...,n}.at n=23A169858a(n) = smallest positive even integer k such that k or one of its left substrings is divisible by any integer from {1..n}.at n=23A175516