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A367127
Independence number of the n-omino graph defined in A098891.
4
1, 1, 1, 2, 4, 6, 17
OFFSET
1,4
COMMENTS
Maximum size of a set of free polyominoes with n cells such that no polyomino in the set can be obtained from another by moving one of its cells.
a(8) is either 45 or 46.
FORMULA
a(n) <= A367440(n).
CROSSREFS
KEYWORD
nonn,more
AUTHOR
STATUS
approved