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A163046
Number of n X n binary arrays with all 1s connected, and all corners 1
0
1, 1, 12, 540, 101950, 75185550, 210133770712
OFFSET
1,3
CROSSREFS
Sequence in context: A184423 A064344 A373900 * A193381 A224539 A210816
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 20 2009
STATUS
approved