The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A128485 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A128485

a(1)=a(2)=a(3)=1; for n > 3, a(n) = lcm(a(n-1) + a(n-2), a(n-3)).
(history; published version)

#15 by OEIS Server at Sun Nov 10 05:20:50 EST 2024

LINKS

Robert Israel, <a href="/A128485/b128485_1.txt">Table of n, a(n) for n = 1..25</a>

#14 by Hugo Pfoertner at Sun Nov 10 05:20:50 EST 2024

STATUS

reviewed

approved

Discussion

Sun Nov 10

05:20

OEIS Server: Installed first b-file as b128485.txt.

#13 by Joerg Arndt at Sun Nov 10 02:29:22 EST 2024

STATUS

proposed

reviewed

#12 by Robert Israel at Sun Nov 10 00:15:56 EST 2024

STATUS

editing

proposed

#11 by Robert Israel at Sun Nov 10 00:15:19 EST 2024

LINKS

Robert Israel, <a href="/A128485/b128485_1.txt">Table of n, a(n) for n = 1..25</a>

STATUS

approved

editing

#10 by Susanna Cuyler at Sun Mar 04 17:44:05 EST 2018

STATUS

proposed

approved

#9 by Jon E. Schoenfield at Sun Mar 04 17:12:27 EST 2018

STATUS

editing

proposed

#8 by Jon E. Schoenfield at Sun Mar 04 17:12:25 EST 2018

NAME

a(1)=a(2)=a(3)=1. ; for n > 3, a(n) = LCMlcm(a(n-1) + a(n-2), a(n-3)).

MAPLE

a[1]:=1: a[2]:=1: a[3]:=1: for n from 4 to 18 do a[n]:=lcm(a[n-1]+a[n-2], a[n-3]) od: seq(a[n], n=1..18); - _# _Emeric Deutsch_, May 22 2007

STATUS

approved

editing

#7 by Charles R Greathouse IV at Wed Apr 09 10:14:39 EDT 2014

AUTHOR

Leroy Quet , May 07 2007

Discussion

Wed Apr 09

10:14

OEIS Server: https://oeis.org/edit/global/2149

#6 by N. J. A. Sloane at Wed Feb 05 20:18:32 EST 2014

AUTHOR

_Leroy Quet _ May 07 2007

Discussion

Wed Feb 05

20:18

OEIS Server: https://oeis.org/edit/global/2118