The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A349545 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A349545

Triangular array read by rows: T(n,k) = A002884(k)*2^((n-k)(n-k-1)), n >= 0, 0 <= k <= n.
(history; published version)

#27 by OEIS Server at Sun Jan 07 17:17:22 EST 2024

LINKS

Andrew Howroyd, <a href="/A349545/b349545_1.txt">Table of n, a(n) for n = 0..1325</a> (rows 0..50)

#26 by Alois P. Heinz at Sun Jan 07 17:17:22 EST 2024

STATUS

reviewed

approved

Discussion

Sun Jan 07

17:17

OEIS Server: Installed first b-file as b349545.txt.

#25 by Michel Marcus at Sun Jan 07 17:16:40 EST 2024

STATUS

proposed

reviewed

#24 by Andrew Howroyd at Sun Jan 07 16:26:12 EST 2024

STATUS

editing

proposed

#23 by Andrew Howroyd at Sun Jan 07 16:21:50 EST 2024

LINKS

Andrew Howroyd, <a href="/A349545/b349545_1.txt">Table of n, a(n) for n = 0..1325</a> (rows 0..50)

STATUS

approved

editing

#22 by N. J. A. Sloane at Sat Oct 08 22:16:42 EDT 2022

STATUS

proposed

approved

#21 by Michel Marcus at Tue Oct 04 01:59:42 EDT 2022

STATUS

editing

proposed

Discussion

Tue Oct 04

02:00

Michel Marcus: right ?

09:13

Geoffrey Critzer: Yes,  thank you.

#20 by Michel Marcus at Tue Oct 04 01:59:39 EDT 2022

COMMENTS

The classes in the equivalence relation described above are called the torsion classes corresponding the to the idempotent E. - Geoffrey Critzer, Oct 02 2022

STATUS

proposed

editing

#19 by Michel Marcus at Sun Oct 02 17:04:13 EDT 2022

STATUS

editing

proposed

#18 by Michel Marcus at Sun Oct 02 17:04:03 EDT 2022

LINKS

Encyclopedia of Mathematics, <a href="http://encyclopediaofmath.org/index.php?title=Periodic_semi-group&oldid=33722">Periodic semigroup<\/a>

STATUS

proposed

editing