login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A056350 Number of primitive (period n) bracelets using exactly four different colored beads. 1

%I

%S 0,0,0,3,24,136,612,2616,10480,41364,159780,613919,2341920,8919204,

%T 33905164,128904660,490213680,1866117224,7111777860,27140327757,

%U 103721217388,396974621676,1521577377012,5840546872280

%N Number of primitive (period n) bracelets using exactly four different colored beads.

%C Turning over will not create a new bracelet.

%D M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia. [See A056391 for pdf file of Chap. 2]

%F Sum mu(d)*A056344(n/d) where d|n.

%Y Cf. A056289.

%K nonn

%O 1,4

%A _Marks R. Nester_

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 5 19:30 EDT 2020. Contains 336213 sequences. (Running on oeis4.)