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A001417
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Number of ways of folding a 2 X 2 X ... X 2 n-dimensional map.
(Formerly M1901 N0750)
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2
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OFFSET
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0,2
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REFERENCES
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N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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Table of n, a(n) for n=0..7.
W. F. Lunnon, Multi-dimensional map-folding, Computer Journal 14 1971 75-80.
Index entries for sequences obtained by enumerating foldings
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CROSSREFS
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Cf. A000136, A000560, A195646, A001418.
Sequence in context: A009752 A322736 A137704 * A156926 A326866 A001697
Adjacent sequences: A001414 A001415 A001416 * A001418 A001419 A001420
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KEYWORD
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hard,nonn,nice,more
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AUTHOR
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N. J. A. Sloane.
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EXTENSIONS
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a(7) from Sean A. Irvine, Dec 21 2017
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STATUS
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approved
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