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A262589
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Number of other isonemal fabrics of exact period n.
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2
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0, 0, 2, 0, 4, 0, 40, 0, 65, 0, 316, 6
(list;
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refs;
listen;
history;
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internal format)
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OFFSET
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2,3
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REFERENCES
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B. Grünbaum and G. C. Shephard, The geometry of fabrics, pp. 77-98 of F. C. Holroyd and R. J. Wilson, editors, Geometrical Combinatorics. Pitman, Boston, 1984.
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LINKS
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Table of n, a(n) for n=2..13.
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FORMULA
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A005441(n) = A000046(n) + A193140(n) + a(n).
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CROSSREFS
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Cf. A000046, A005441, A193140.
Sequence in context: A019219 A019139 A285774 * A019215 A326799 A112081
Adjacent sequences: A262586 A262587 A262588 * A262590 A262591 A262592
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KEYWORD
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nonn,more
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AUTHOR
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N. J. A. Sloane, Oct 21 2015
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STATUS
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approved
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