A007688 - OEIS

%I M3514 #18 Aug 26 2022 19:55:36

%S 4,16,52,144,420,816,1732,3508,7060,18640

%N Number of 5-colorings of cyclic group of order n.

%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

%H R. Haas, <a href="https://doi.org/10.2307/2690938">Three-colorings of finite groups or an algebra of nonequalities</a>, Math. Mag., 63 (1990), 211-225.

%H R. Haas, <a href="/A007687/a007687.pdf">Letter to N. J. A. Sloane, Aug. 1994</a>

%Y Cf. A007687.

%K nonn,more

%O 1,1

%A _N. J. A. Sloane_

%E a(6)-a(10) from _Andrey Zabolotskiy_, Jul 12 2017