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A005619
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Number of Boolean functions realized by n-input cascades.
(Formerly M5020)
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1
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OFFSET
| 2,1
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REFERENCES
| J. T. Butler, Tandem networks of universal cells, IEEE Trans. Computers, C-27 (1978), 681-690.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
| S. Plouffe, Approximations de S\'{e}ries G\'{e}n\'{e}ratrices et Quelques Conjectures, Dissertation, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.
S. Plouffe, 1031 Generating Functions and Conjectures, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.
Index entries for sequences related to Boolean functions
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MAPLE
| A005619:=-16*(1-18*z+20*z**2)/(z-1)/(80*z**2-32*z+1); [Conjectured by S. Plouffe in his 1992 dissertation.]
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CROSSREFS
| Sequence in context: A170697 A170735 A058667 * A204793 A173605 A175720
Adjacent sequences: A005616 A005617 A005618 * A005620 A005621 A005622
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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