OFFSET
1,5
COMMENTS
Permuting the colors does not change the structure.
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..200
EXAMPLE
For n=5, the 5 necklace structures are: aaabc, aabac, aabbc, aabcb, ababc.
CROSSREFS
KEYWORD
nonn
AUTHOR
Andrew Howroyd, Oct 26 2019
STATUS
approved