OFFSET
1,1
COMMENTS
a(n) is a lower bound for the maximum number of grid points in a square grid covered by an arbitrarily positioned and rotated square of side length n, excluding the trivial case of an axis-parallel unshifted square.
Grid points must be strictly inside the covering square, i.e., grid points on the perimeter of the square are not allowed.
LINKS
Hugo Pfoertner, Illustrations of the terms a(1)..a(22).
FORMULA
a(n) = A354704(n,n).
EXAMPLE
For examples see the figures in the linked file.
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Hugo Pfoertner, Jun 19 2022
STATUS
approved