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A308578
Maximum number of non-overlapping circles of radius 1/n that can be placed inside a unit square.
2
0, 1, 1, 4, 5, 9, 10, 16, 20, 25, 30, 36
OFFSET
1,4
COMMENTS
Alternatively described as the maximum number of circles of unit radius that can be placed inside a square of side length n.
It appears that the terms a(2) to a(8) are equal to the related terms of A189889.
FORMULA
a(2k) = A084617(k). - Jon E. Schoenfield, Jun 09 2019
EXAMPLE
a(6)=9 because 9 circles of radius 1/6 can be placed in a 3 X 3 regular grid inside a unit square.
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Ethan D. Kidd, Jun 08 2019
STATUS
approved