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A002820
Number of n X n invertible binary matrices A such that A+I is invertible.
(Formerly M2170 N0866)
+0
6
2, 48, 5824, 2887680, 5821595648, 47317927329792, 1544457148312846336, 202039706313624586813440, 105823549214125066767168438272, 221819704567105547916502447159246848
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.
AT&T Labs Research
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