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A354707
Diagonal of A354705.
4
2, 4, 3, 7, 4, 8, 11, 9, 11, 8, 16, 20, 15, 20, 14, 24, 11, 23, 27, 20, 34, 17, 31, 41, 28, 32
OFFSET
1,1
COMMENTS
a(n)-n is an indicator of whether there is still space between the covered grid points and the best possible placed square towards its perimeter. a(n)-n <= 0 for n = 3, 5, 10, 15, 17, 20, 22, ... . A comparison with the linked illustrations from A354706 shows that in all these cases the covering square is rotated by Pi/4 and only slightly exceeds diagonal rows of grid points on all its edges.
CROSSREFS
A354492 is the analogous sequence, but for the problem of minimizing the number of grid points covered.
Sequence in context: A011171 A181049 A007203 * A110412 A266285 A258851
KEYWORD
nonn,hard,more
AUTHOR
Hugo Pfoertner, Jun 21 2022
STATUS
approved