The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A056367 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A056367

Number of primitive (period n) bracelet structures using exactly three different colored beads.
(history; published version)

#9 by N. J. A. Sloane at Tue Aug 22 20:53:09 EDT 2017

AUTHOR

Marks R. Nester (nesterm(AT)dpi.qld.gov.au)

Marks R. Nester

Discussion

Tue Aug 22

20:53

OEIS Server: https://oeis.org/edit/global/2696

#8 by N. J. A. Sloane at Fri May 19 10:39:28 EDT 2017

REFERENCES

M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia. [See A056391 for pdf file of Chap. 2]

Discussion

Fri May 19

10:39

OEIS Server: https://oeis.org/edit/global/2652

#7 by Joerg Arndt at Mon Apr 10 05:26:06 EDT 2017

STATUS

proposed

approved

#6 by Andrew Howroyd at Mon Apr 10 00:14:37 EDT 2017

STATUS

editing

proposed

#5 by Andrew Howroyd at Mon Apr 10 00:14:22 EDT 2017

CROSSREFS

Column 3 of A276543.

STATUS

approved

editing

#4 by N. J. A. Sloane at Wed Sep 22 03:00:00 EDT 2004

KEYWORD

nonn,new

nonn

AUTHOR

Marks R. Nester (nesterm(AT)qfri1.se2.dpi.qld.gov.au)

#3 by N. J. A. Sloane at Sat Jun 12 03:00:00 EDT 2004

NAME

Primitive Number of primitive (period n) bracelet structures using exactly three different colored beads.

KEYWORD

nonn,new

nonn

#2 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003

NAME

Primitive (period n) bracelet structures using exactly three different coloured colored beads.

COMMENTS

Turning over will not create a new bracelet. Permuting the colours colors of the beads will not change the structure.

REFERENCES

M. R. Nester, M. R. (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.

KEYWORD

nonn,new

nonn

AUTHOR

Marks R. Nester (nesterm@(AT)qfri1.se2.dpi.qld.gov.au)

#1 by N. J. A. Sloane at Sat Jul 22 03:00:00 EDT 2000

NAME

Primitive (period n) bracelet structures using exactly three different coloured beads.

DATA

0, 0, 1, 2, 5, 13, 31, 80, 201, 533, 1401, 3822, 10395, 28859, 80201, 225286, 634265, 1796433, 5100325, 14534758, 41513402, 118879249, 341094843, 980661980, 2824223490, 8146897815, 23535345170

OFFSET

1,4

COMMENTS

Turning over will not create a new bracelet. Permuting the colours of the beads will not change the structure.

REFERENCES

Nester, M. R. (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.

FORMULA

A056362(n)-A000046(n).

CROSSREFS

Cf. A056304.

KEYWORD

nonn

AUTHOR

Marks R. Nester (nesterm@qfri1.se2.dpi.qld.gov.au)

STATUS

approved