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A055603
Number of n X n binary matrices with no zero rows or columns and with n+2 ones.
+0
5
0, 1, 90, 2248, 43000, 755100, 13003620, 226262400, 4037765760, 74481120000
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
AT&T Labs Research
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