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A200147
Number of 0..1 arrays x(0..n-1) of n elements with zero n-1st difference.
0
1, 2, 2, 4, 2, 8, 2, 16, 6, 32, 2, 64, 2, 144, 14, 256, 2, 512, 2, 1024, 6, 2048, 2, 4096, 50, 8192, 6, 16384, 2, 34816, 2, 66176, 6, 147456, 130, 262168, 2, 524288, 38, 1048576, 2, 2127872, 2, 4194304, 134, 8388608, 2, 17825792, 4098, 33554432, 6, 67108864
OFFSET
1,2
COMMENTS
Column 1 of A200154.
LINKS
Eugen J. Ionascu, Bisecting binomial coefficients (II), arXiv preprint arXiv:1712.01243, 2017
Eugen J. Ionascu, Thor Martinsen, Pantelimon Stanica, Bisecting binomial coefficients, arXiv:1610.02063 [math.CO], 2016. See p. 11.
EXAMPLE
All solutions for n=6
..0....0....0....1....1....0....1....1
..0....1....0....1....0....1....0....1
..1....1....0....0....1....0....0....1
..1....1....0....0....1....0....0....1
..0....1....0....1....0....1....0....1
..0....0....0....1....1....0....1....1
CROSSREFS
Cf. A200154.
Sequence in context: A304102 A096154 A270365 * A235063 A084540 A364557
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 13 2011
EXTENSIONS
a(38)-a(52) added from Ionascu link by Michel Marcus, Oct 10 2016
STATUS
approved