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A192413
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Number of nXnXn triangular binary arrays with every 1 adjacent to at most 4 other 1s
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1
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2, 8, 64, 968, 28832, 1671872, 188562024, 41430463144, 17723539378064, 14763059454475880, 23944611669892140680, 75620272070369667245120, 465017414868882102745479712, 5568018952998142584614666404696
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history;
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OFFSET
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1,1
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..18
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EXAMPLE
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Some solutions for 5X5X5
......0..........0..........1..........1..........0..........1..........1
.....1.0........1.0........0.1........0.1........0.1........0.0........1.0
....1.1.1......1.0.1......0.1.1......1.1.0......0.0.0......1.0.1......1.1.0
...1.0.1.0....0.0.1.0....1.1.0.1....0.0.1.1....1.1.1.1....0.0.1.1....0.0.0.0
..0.0.0.1.1..1.0.0.0.0..0.0.0.0.1..1.1.1.1.1..0.0.1.0.1..1.0.0.1.0..0.0.0.1.0
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CROSSREFS
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Sequence in context: A153569 A153532 A153561 * A194456 A153542 A153570
Adjacent sequences: A192410 A192411 A192412 * A192414 A192415 A192416
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin Jun 30 2011
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STATUS
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approved
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