A074657 - OEIS

%I #8 Aug 24 2015 14:18:02

%S 1,24,11328,11211192,15277006080,24934429725000,45695805580701504,

%T 90784545100668913368,191417861328822311040000,

%U 422458626725600682506889600,966695515158024385775097720000,2277925055026596846727033776223416,5499697195473757755136472944165075200

%N Number of Lyndon words (aperiodic necklaces) with 5n beads of 5 colors, n beads of each color.

%H <a href="/index/Lu#Lyndon">Index entries for sequences related to Lyndon words</a>

%F 1/(5n) * sum over d|n of {mu(n/d) * (5d)! / d!^5}.

%Y a(n) = A074653(n)/5. a(n)=A074654(n)*24.

%K nonn

%O 0,2

%A _Christian G. Bower_, Aug 29 2002

%E a(0)=1 prepended by _Alois P. Heinz_, Aug 24 2015