OFFSET
1,1
COMMENTS
This sequence appears in Proposition 7.1, p. 27 of Haettig, Hafner, Hausen and Springer.
LINKS
Justus Springer, Table of n, a(n) for n = 1..200
Daniel Haettig, Beatrice Hafner, Juergen Hausen and Justus Springer, Del Pezzo surfaces of Picard number one admitting a torus action, arXiv:2207.14790 [math.AG], 2022.
Daniel Hättig, Jürgen Hausen, Justus Springer and Hendrik Süß, Log del Pezzo surfaces with torus action - a searchable database
CROSSREFS
KEYWORD
nonn
AUTHOR
Justus Springer, Aug 04 2023
STATUS
approved