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A091327
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Triangle T(n,k) read by rows giving number of inequivalent even binary linear [n,k] codes containing no zero columns (n >= 2, 1 <= k <= n-1).
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1
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1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 2, 3, 2, 1, 0, 2, 4, 4, 2, 1, 1, 3, 8, 10, 7, 3, 1, 0, 3, 9, 18, 16, 9, 3, 1
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OFFSET
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2,12
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COMMENTS
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"Even" means that every word has even weight. Equivalently, the all-ones vector is in the dual code.
Difference between successive rows of A091325.
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LINKS
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EXAMPLE
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Triangle begins
1
0 1
1 1 1
0 1 1 1
1 2 3 2 1
0 2 4 4 2 1
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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