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A053874
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Triangle T(n,k) = number of Boolean functions mapping {0,1}^n to {0,1}^n with image of size k (k = 0...2^n) under action of GL(n,2).
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1
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1, 2, 1, 1, 2, 2, 2, 1, 1, 2, 2, 3, 4, 3, 2, 2, 1, 1, 2, 2, 3, 5, 7, 9, 11, 12, 11, 9, 7, 5, 3, 2, 2, 1, 1, 2, 2, 3, 5, 8, 14, 23, 35, 55, 84, 117, 158, 204, 242, 274, 290, 274, 242, 204, 158, 117, 84, 55, 35, 23, 14, 8, 5, 3, 2, 2, 1, 1, 2, 2, 3, 5, 8, 15, 29, 54, 107, 227, 495, 1131
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graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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EXAMPLE
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Triangle begins:
1, 2, 1;
1, 2, 2, 2, 1;
1, 2, 2, 3, 4, 3, 2, 2, 1;
...
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CROSSREFS
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KEYWORD
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nonn,tabf,nice
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AUTHOR
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STATUS
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approved
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