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A091471 Number of n X n matrices with entries {-1,1} that are diagonalizable over the complex numbers. 2
2, 12, 464, 50224 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See A091472 for definition of diagonalizable and for Mathematica definitions.

LINKS

Table of n, a(n) for n=1..4.

Eric Weisstein's World of Mathematics, Diagonalizable Matrix

Index entries for sequences related to binary matrices

MATHEMATICA

Table[Count[Matrices[n, {-1, 1}], _?DiagonalizableQ], {n, 4}]

CROSSREFS

Cf. A091470, A091472.

Sequence in context: A062738 A296623 A009510 * A012625 A012630 A013173

Adjacent sequences:  A091468 A091469 A091470 * A091472 A091473 A091474

KEYWORD

nonn,more

AUTHOR

Eric W. Weisstein, Jan 12 2004

STATUS

approved

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Last modified January 21 17:07 EST 2019. Contains 319350 sequences. (Running on oeis4.)