The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A089478 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A089478

Triangle T(n,k) read by rows, where T(n,k) = number of times the determinant of a real n X n (0,1)-matrix takes the value k, for n >= 0, 0 <= k <= A003432(n).
(history; published version)

#25 by Michael De Vlieger at Mon Apr 29 10:53:10 EDT 2024

STATUS

proposed

approved

#24 by Robert C. Lyons at Mon Apr 29 10:09:47 EDT 2024

STATUS

editing

proposed

#23 by Robert C. Lyons at Mon Apr 29 10:09:45 EDT 2024

PROG

(Fortran)

c See link in A086264.

STATUS

approved

editing

#22 by OEIS Server at Sun Apr 28 12:16:29 EDT 2024

LINKS

Minfeng Wang, <a href="/A089478/b089478_1.txt">Table of n, a(n) for n = 0..118</a>

#21 by Alois P. Heinz at Sun Apr 28 12:16:29 EDT 2024

STATUS

reviewed

approved

Discussion

Sun Apr 28

12:16

OEIS Server: Installed first b-file as b089478.txt.

#20 by Stefano Spezia at Sun Apr 28 12:10:40 EDT 2024

STATUS

proposed

reviewed

Discussion

Sun Apr 28

12:16

Alois P. Heinz: ok, thanks ...

#19 by Jon E. Schoenfield at Sun Apr 28 00:12:51 EDT 2024

STATUS

editing

proposed

#18 by Jon E. Schoenfield at Sun Apr 28 00:11:42 EDT 2024

EXTENSIONS

More terms from Minfeng Wang, Apr 28 2024

STATUS

proposed

editing

Discussion

Sun Apr 28

00:12

Jon E. Schoenfield: (No terms have been added to the Data section.)

#17 by Minfeng Wang at Sat Apr 27 21:42:06 EDT 2024

STATUS

editing

proposed

#16 by Minfeng Wang at Sat Apr 27 21:40:50 EDT 2024

LINKS

Minfeng Wang, <a href="/A089478/b089478_1.txt">Table of n, a(n) for n = 0..118</a>

Discussion

Sat Apr 27

21:41

Minfeng Wang: The n-th row of the triangle contains (A003432(n)+1) entries [0 <= k <= A003432(n)].
According to CROSSREFS: the n-th row of the triangle contains A089472(n) nonzero entries, that is why so many 0's in my data.