The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A047518 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A047518

Numbers that are congruent to {2, 3, 4, 6, 7} mod 8.
(history; published version)

#15 by Jon E. Schoenfield at Sat Mar 07 06:52:07 EST 2020

STATUS

editing

approved

#14 by Jon E. Schoenfield at Sat Mar 07 06:52:05 EST 2020

AUTHOR

N. J. A. Sloane.

STATUS

approved

editing

#13 by Bruno Berselli at Mon May 30 04:24:32 EDT 2016

STATUS

editing

approved

#12 by Bruno Berselli at Mon May 30 04:24:30 EDT 2016

KEYWORD

nonn,easy,changed

STATUS

approved

editing

#11 by Bruno Berselli at Mon May 30 04:24:18 EDT 2016

STATUS

reviewed

approved

#10 by Joerg Arndt at Mon May 30 04:22:32 EDT 2016

STATUS

proposed

reviewed

Discussion

Mon May 30

04:24

Bruno Berselli: Please add "easy" in Keyword. Thanks ---

#9 by G. C. Greubel at Mon May 30 01:33:59 EDT 2016

STATUS

editing

proposed

#8 by G. C. Greubel at Mon May 30 01:33:42 EDT 2016

LINKS

G. C. Greubel, <a href="/A047518/b047518.txt">Table of n, a(n) for n = 1..1000</a>

<a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (1,0,0,0,1,-1).

MATHEMATICA

LinearRecurrence[{1, 0, 0, 0, 1, -1}, {2, 3, 4, 6, 7, 10}, 50] (* G. C. Greubel, May 30 2016 *)

STATUS

proposed

editing

#7 by Chai Wah Wu at Mon May 30 01:02:46 EDT 2016

STATUS

editing

proposed

#6 by Chai Wah Wu at Mon May 30 01:02:42 EDT 2016

FORMULA

From Chai Wah Wu, May 30 2016: (Start)

a(n) = a(n-1) + a(n-5) - a(n-6) for n > 6.

G.f.: x*(x^5 + x^4 + 2*x^3 + x^2 + x + 2)/(x^6 - x^5 - x + 1). (End)

STATUS

approved

editing