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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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0
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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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OFFSET
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1,2
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LINKS
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Table of n, a(n) for n=1..80.
Index entries for sequences related to Boolean functions
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EXAMPLE
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[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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Row sums give A000585.
Sequence in context: A223708 A060778 A096492 * A170906 A123245 A110535
Adjacent sequences: A053871 A053872 A053873 * A053875 A053876 A053877
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KEYWORD
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nonn,tabf,nice
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AUTHOR
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Vladeta Jovovic, Mar 30 2000
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STATUS
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approved
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