The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A267383 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A267383

Number A(n,k) of acyclic orientations of the Turán graph T(n,k); square array A(n,k), n>=0, k>=1, read by antidiagonals.
(history; published version)

#26 by Alois P. Heinz at Wed Apr 24 20:06:32 EDT 2024

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approved

#25 by Alois P. Heinz at Wed Apr 24 20:06:29 EDT 2024

LINKS

Wikipedia, <a href="https://en.wikipedia.org/wiki/Acyclic_orientation">Acyclic orientation</a>

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approved

editing

#24 by Alois P. Heinz at Thu Apr 18 12:49:43 EDT 2024

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approved

#23 by Alois P. Heinz at Thu Apr 18 09:06:50 EDT 2024

CROSSREFS

Bisection of column k=2 gives A048163.

#22 by Alois P. Heinz at Wed Apr 17 22:06:07 EDT 2024

CROSSREFS

a(n^2,n) gives A372084.

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approved

editing

#21 by Alois P. Heinz at Wed Apr 17 21:01:36 EDT 2024

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editing

approved

#20 by Alois P. Heinz at Wed Apr 17 20:22:27 EDT 2024

CROSSREFS

Trisection of column k=3 gives A370961.

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approved

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#19 by Alois P. Heinz at Thu Oct 18 16:24:07 EDT 2018

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#18 by Alois P. Heinz at Thu Oct 18 16:23:16 EDT 2018

EXAMPLE

1, 1, 1, 1, 1, 1, 1, ...

1, 2, 2, 2, 2, 2, 2, ...

1, 4, 6, 6, 6, 6, 6, ...

1, 14, 18, 24, 24, 24, 24, ...

1, 46, 78, 96, 120, 120, 120, ...

1, 230, 426, 504, 600, 720, 720, ...

1, 1066, 2286, 3216, 3720, 4320, 5040, ...

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approved

editing

#17 by Vaclav Kotesovec at Sat Feb 18 09:15:03 EST 2017

STATUS

editing

approved