OFFSET
2,1
LINKS
Daniel Yuschak, Delta-matroids with twist monomials, arXiv:2208.13258 [math.CO], 2022-2023.
Daniel Yuschak, Delta-matroids whose twist polynomials are monomials, European Journal of Combinatorics 118, 103925 (2024).
FORMULA
a(n) <= A006125(n+1).
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Stefano Spezia, Feb 09 2024
STATUS
approved