The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A261415 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A261415

The maximal midpoint-free set Z_7^{+}{0,1,3}.
(history; published version)

#15 by Jon E. Schoenfield at Tue Jul 25 01:20:07 EDT 2017

STATUS

editing

approved

#14 by Jon E. Schoenfield at Tue Jul 25 01:20:04 EDT 2017

NAME

The maximal midmidpoint-point free set Z_7^{+}{0,1,3}.

STATUS

approved

editing

#13 by Charles R Greathouse IV at Wed Feb 15 01:49:14 EST 2017

STATUS

editing

approved

#12 by Charles R Greathouse IV at Wed Feb 15 01:49:11 EST 2017

LINKS

<a href="/index/Ar#7-automatic">Index entries for 7-automatic sequences</a>.

PROG

(PARI) is(n)=#setunion(Set(digits(n, 7)), [0, 1, 3])==3 \\ Charles R Greathouse IV, Feb 15 2017

STATUS

approved

editing

#11 by N. J. A. Sloane at Thu Aug 27 11:18:33 EDT 2015

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proposed

approved

#10 by Joerg Arndt at Thu Aug 27 08:23:54 EDT 2015

STATUS

editing

proposed

Discussion

Thu Aug 27

08:30

Michel Marcus: midpoint-free like the article title ?

#9 by Joerg Arndt at Thu Aug 27 02:45:48 EDT 2015

LINKS

Roger B. Eggleton, <a href="http://dx.doi.org/10.1155/2015/216475">Maximal Midpoint-Free Subsets of Integers</a> , International Journal of Combinatorics , Volume 2015, Article ID 216475, 14 pages.

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proposed

editing

#8 by Michel Marcus at Wed Aug 26 17:45:20 EDT 2015

STATUS

editing

proposed

Discussion

Wed Aug 26

21:20

Jon E. Schoenfield: "mid-point"? or "midpoint"?

#7 by Michel Marcus at Wed Aug 26 17:45:12 EDT 2015

REFERENCES

Eggleton, Roger B. "Maximal Midpoint-Free Subsets of Integers." International Journal of Combinatorics Volume 2015, Article ID 216475, 14 pages; http://dx.doi.org/10.1155/2015/216475; http://www.hindawi.com/journals/ijcom/2015/216475/abs/

LINKS

Roger B. Eggleton, <a href="http://dx.doi.org/10.1155/2015/216475">Maximal Midpoint-Free Subsets of Integers</a> International Journal of Combinatorics Volume 2015, Article ID 216475, 14 pages.

STATUS

proposed

editing

#6 by Giovanni Resta at Wed Aug 26 17:28:01 EDT 2015

STATUS

editing

proposed