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A369999
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Irregular triangle read by rows: T(n,k) is the number of connected induced k-vertex subgraphs of the hypercube graph of dimension n >= 0, 1 <= k <= 2^n.
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2
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1, 2, 1, 4, 4, 4, 1, 8, 12, 24, 38, 48, 28, 8, 1, 16, 32, 96, 280, 784, 1952, 4304, 7280, 8720, 7136, 4192, 1804, 560, 120, 16, 1
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graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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LINKS
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EXAMPLE
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Triangle begins:
1;
2, 1;
4, 4, 4, 1;
8, 12, 24, 38, 48, 28, 8, 1;
16, 32, 96, 280, 784, 1952, 4304, 7280, 8720, 7136, 4192, 1804, 560, 120, 16, 1;
...
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CROSSREFS
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KEYWORD
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nonn,tabf,more
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AUTHOR
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STATUS
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approved
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