1020005domain: NAppears in sequencesa(1) = 1, a(n) is the smallest multiple of n which begins with a(n-1) and is greater than a(n-1).at n=6A078282Fixed points of permutations A118763, A118764, A118765 and A118766.at n=18A118767Least numbers whose groups of 2,3,...,n digits taken from the left are divisible by 2,3,...,n.at n=6A214437