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A370096 a(n) is the number of inequivalent delta-matroids on a ground set of size n. 1
5, 16, 90, 2902 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,1
LINKS
Table of n, a(n) for n=2..5.
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
Cf. A006125, A370095.
Sequence in context: A286072 A002830 A365654 * A196015 A332625 A307953
Adjacent sequences: A370093 A370094 A370095 * A370097 A370098 A370099
KEYWORD
nonn,more
AUTHOR
Stefano Spezia, Feb 09 2024
STATUS
approved

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Last modified May 13 14:08 EDT 2024. Contains 372519 sequences. (Running on oeis4.)