The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A051752 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A051752

Number of n X n (real) {0,1}-matrices having determinant A003432(n).
(history; published version)

#29 by Charles R Greathouse IV at Sun Feb 16 08:32:41 EST 2025

LINKS

Eric Weisstein's World of Mathematics, <a href="httphttps://mathworld.wolfram.com/HadamardsMaximumDeterminantProblem.html">Hadamard's Maximum Determinant Problem.</a>

Eric Weisstein's World of Mathematics, <a href="httphttps://mathworld.wolfram.com/01-Matrix.html">(0, 1)-Matrix</a>

Discussion

Sun Feb 16

08:32

OEIS Server: https://oeis.org/edit/global/3014

#28 by Alois P. Heinz at Wed Dec 20 19:46:11 EST 2023

STATUS

editing

approved

#27 by Alois P. Heinz at Wed Dec 20 19:36:44 EST 2023

DATA

1, 1, 3, 3, 60, 3600, 529200, 75600, 195955200, 13716864000

OFFSET

1,2

0,3

EXTENSIONS

a(0)=1 prepended by Alois P. Heinz, Dec 20 2023

STATUS

approved

editing

#26 by Michael De Vlieger at Tue Jan 24 16:44:10 EST 2023

STATUS

proposed

approved

#25 by Hugo Pfoertner at Tue Jan 24 15:43:24 EST 2023

STATUS

editing

proposed

#24 by Hugo Pfoertner at Tue Jan 24 15:42:44 EST 2023

CROSSREFS

Cf. A003432, A046747, A086264, A089478, A188895.

KEYWORD

nonn,hard,more

STATUS

approved

editing

#23 by Michael De Vlieger at Thu Jun 30 14:44:37 EDT 2022

STATUS

reviewed

approved

#22 by Wesley Ivan Hurt at Thu Jun 30 12:44:11 EDT 2022

STATUS

proposed

reviewed

#21 by Michel Marcus at Thu Jun 30 12:24:57 EDT 2022

STATUS

editing

proposed

#20 by Michel Marcus at Thu Jun 30 12:24:53 EDT 2022

REFERENCES

Miodrag Zivkovic, Classification of small (0,1) matrices, Linear Algebra and its Applications, 414 (2006), 310-346

LINKS

Miodrag Zivkovic, <a href="https://doi.org/10.1016/j.laa.2005.10.010">Classification of small (0,1) matrices</a>, Linear Algebra and its Applications, 414 (2006), 310-346.

STATUS

approved

editing