OFFSET
1,5
COMMENTS
A hairpin composition with t parts is a composition that is true-palindromic except for a part-sequence in the center of length at least 1 but no more than t-2. [Shapcott p. 46]
LINKS
Caroline Shapcott, An introduction to true-palindromic compositions, Australasian Journal of Combinatorics, Volume 60(1) (2014), Pages 35-49.
CROSSREFS
KEYWORD
nonn,base,more
AUTHOR
Michel Marcus, Nov 06 2020
STATUS
approved