The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A027680

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A027680

Number of independent subsets of 5^n cube (P_5 X ... X P_5).
(history; published version)

#12 by Giovanni Resta at Thu Nov 21 07:39:31 EST 2019

STATUS

reviewed

approved

#11 by Joerg Arndt at Thu Nov 21 04:38:40 EST 2019

STATUS

proposed

reviewed

#10 by Sean A. Irvine at Wed Nov 20 17:00:01 EST 2019

STATUS

editing

proposed

#9 by Sean A. Irvine at Wed Nov 20 16:59:56 EST 2019

EXAMPLE

For n=0, the two sets are the empty set and a set containing a single isolated vertex. - Sean A. Irvine, Nov 20 2019

STATUS

proposed

editing

#8 by Sean A. Irvine at Wed Nov 20 15:52:23 EST 2019

STATUS

editing

proposed

Discussion

Wed Nov 20

16:21

Peter Luschny: which are..? Perhaps worth to show in the Example section?

#7 by Sean A. Irvine at Wed Nov 20 15:52:14 EST 2019

KEYWORD

nonn,hard,more,changed

#6 by Sean A. Irvine at Wed Nov 20 15:51:57 EST 2019

CROSSREFS

Cf. A027624, A027667, A027668.

#5 by Sean A. Irvine at Wed Nov 20 15:51:10 EST 2019

DATA

1, 2, 13, 55447, 1621477990380993035885

OFFSET

0,21

EXTENSIONS

a(0) corrected by Sean A. Irvine, Nov 20 2019

STATUS

approved

editing

#4 by Russ Cox at Sat Mar 31 12:34:58 EDT 2012

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net)_

Discussion

Sat Mar 31

12:34

OEIS Server: https://oeis.org/edit/global/875

#3 by N. J. A. Sloane at Fri Jan 09 03:00:00 EST 2009

KEYWORD

nonn,new

nonn

AUTHOR

R. H. Hardin (rhhrhhardin(AT)cadenceatt.comnet)