Daisy chains - a fruitful combinatorial concept

  title={Daisy chains - a fruitful combinatorial concept},
  author={Donald A. Preece},
  journal={Australasian J. Combinatorics},
“Daisy, Daisy, give me your answer, do!” [10] For any positive integer n, the units of Zn are those elements of Zn \ {0} that are coprime with n. The number of units in Zn is given by Euler’s totient function φ(n). If n is odd, a daisy chain for the units of Zn is obtained by arranging the units of Zn on a circle in some order [a1, a2, . . . , aφ(n)] such… CONTINUE READING