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Revision History for A267589

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Showing entries 1-10 | older changes

A267589

Decimal representation of the middle column of the "Rule 169" elementary cellular automaton starting with a single ON (black) cell.
(history; published version)

#15 by Michel Marcus at Sat Apr 20 08:48:33 EDT 2019

STATUS

reviewed

approved

#14 by Joerg Arndt at Sat Apr 20 08:28:48 EDT 2019

STATUS

proposed

reviewed

#13 by Colin Barker at Sat Apr 20 08:24:23 EDT 2019

STATUS

editing

proposed

#12 by Colin Barker at Sat Apr 20 08:24:05 EDT 2019

LINKS

<a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (3,-2).

FORMULA

From _Conjectures from _Colin Barker_, Jan 18 2016 and Apr 20 2019: (Start)

PROG

(PARI) Vec((1-x+x^2-x^3+x^5)/((1-x)*(1-2*x)) + O(x^50)) \\ Colin Barker, Jan 18 2016

STATUS

approved

editing

#11 by Bruno Berselli at Mon Jan 18 11:30:11 EST 2016

STATUS

proposed

approved

#10 by Robert Price at Mon Jan 18 11:17:13 EST 2016

STATUS

editing

proposed

#9 by Robert Price at Mon Jan 18 11:17:04 EST 2016

LINKS

Robert Price, <a href="/A267589/b267589.txt">Table of n, a(n) for n = 0..1000</a>

STATUS

approved

editing

#8 by Peter Luschny at Mon Jan 18 09:20:08 EST 2016

STATUS

reviewed

approved

#7 by Michel Marcus at Mon Jan 18 06:15:35 EST 2016

STATUS

proposed

reviewed

#6 by Colin Barker at Mon Jan 18 05:29:38 EST 2016

STATUS

editing

proposed

Discussion

Mon Jan 18

06:15

Michel Marcus: related to A171389 ?