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 A053874 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). 0
 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS EXAMPLE [1, 2, 1], [1, 2, 2, 2, 1], [1, 2, 2, 3, 4, 3, 2, 2, 1], ... CROSSREFS Row sums give A000585. Sequence in context: A223708 A060778 A096492 * A170906 A123245 A110535 Adjacent sequences:  A053871 A053872 A053873 * A053875 A053876 A053877 KEYWORD nonn,tabf,nice AUTHOR Vladeta Jovovic, Mar 30 2000 STATUS approved

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