The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A208595 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A208595

Number of n-bead necklaces labeled with numbers -6..6 not allowing reversal, with sum zero.
(history; published version)

#2 by Ron Hardin at Wed Feb 29 11:05:01 EST 2012

NAME

allocated for Ron HardinNumber of n-bead necklaces labelled with numbers -6..6 not allowing reversal, with sum zero

DATA

1, 7, 43, 371, 3431, 34153, 353333, 3770475, 41165305, 457714497, 5164908167, 58997692301, 680874861687, 7926902673655

OFFSET

1,2

COMMENTS

Column 6 of A208597

EXAMPLE

Some solutions for n=4

.-4...-5...-4...-6...-5...-3...-4...-1...-4...-6...-6...-4...-6...-1...-5...-4

..4....2...-3....5....0....1....0....0....2...-1....3....2....5...-1....4....2

..0...-1....4....1....0....2...-1....0...-3....1....2...-2...-4....0....2....4

..0....4....3....0....5....0....5....1....5....6....1....4....5....2...-1...-2

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Feb 29 2012

STATUS

approved

editing

#1 by Ron Hardin at Wed Feb 29 10:56:14 EST 2012

NAME

allocated for Ron Hardin

KEYWORD

allocated

STATUS

approved