The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A118028 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A118028

a(0)=1. a(n) = a(n-1) + (smallest integer which is >= n and is missing from the earlier terms of the sequence).
(history; published version)

#12 by Alois P. Heinz at Tue Sep 19 21:37:32 EDT 2017

STATUS

proposed

approved

#11 by Michael De Vlieger at Tue Sep 19 21:36:14 EDT 2017

STATUS

editing

proposed

#10 by Michael De Vlieger at Tue Sep 19 21:36:10 EDT 2017

LINKS

Michael De Vlieger, <a href="/A118028/b118028.txt">Table of n, a(n) for n = 0..1000</a>

#9 by Michael De Vlieger at Tue Sep 19 21:16:45 EDT 2017

MATHEMATICA

a = {1}; Do[k = 2; While[Nand[FreeQ[a, k], k >= i], k++]; AppendTo[a, a[[i]] + k], {i, 53}]; a (* Michael De Vlieger, Sep 19 2017 *)

STATUS

approved

editing

#8 by Charles R Greathouse IV at Wed Apr 09 10:14:04 EDT 2014

AUTHOR

Leroy Quet , Apr 10 2006

Discussion

Wed Apr 09

10:14

OEIS Server: https://oeis.org/edit/global/2148

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

AUTHOR

_Leroy Quet _ Apr 10 2006

Discussion

Wed Feb 05

20:18

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

#6 by Russ Cox at Fri Mar 30 17:36:54 EDT 2012

EXTENSIONS

More terms from _Joshua Zucker (joshua.zucker(AT)stanfordalumni.org), _, Jul 27 2006

Discussion

Fri Mar 30

17:36

OEIS Server: https://oeis.org/edit/global/177

#5 by N. J. A. Sloane at Sat Oct 02 03:00:00 EDT 2010

LINKS

Leroy Quet, <a href="http://www.prism-of-spirals.net/">Home Page</a> (listed in lieu of email address)

KEYWORD

easy,nonn,new

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

LINKS

Leroy Quet, <a href="http://www.prism-of-spirals.net/">Home Page</a> (listed in lieu of email address)

KEYWORD

easy,nonn,new

AUTHOR

Leroy Quet (qq-quet(AT)mindspring.com), Apr 10 2006

#3 by N. J. A. Sloane at Sat Nov 10 03:00:00 EST 2007

NAME

a(0)=1. a(n) = a(n-1) + (lowest smallest integer which is >= n and is missing from the earlier terms of the sequence).

KEYWORD

easy,nonn,new