OFFSET
1,1
LINKS
Wouter Castryck, Moving Out the Edges of a Lattice Polygon, Discrete Comput. Geom., 47 (2012), p. 496-518, Column N in Table 1, p 512.
R. J. Koelman, The number of moduli families of curves on toric surfaces, Dissertation (1991), Chapter 4.2.
Hugo Pfoertner, Illustration of polygons of genus 1 representing the 16 equivalence classes, (2018).
Poonen, B., Rodriguez-Villegas, F., Lattice polygons and the number 12, Am. Math. Mon. 107 (2000), no. 3, 238-250 (2000).
EXAMPLE
a(1) = 16 because there are 16 equivalence classes of lattice polygons having exactly 1 interior lattice point. See Pfoertner link.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Hugo Pfoertner, Dec 04 2018
STATUS
approved