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A003218 Weights of threshold functions.
(Formerly M0719)
+0
1
1, 2, 3, 5, 9, 18, 42 (list; graph; listen)
OFFSET

2,2

REFERENCES

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. Muroga, Threshold Logic and Its Applications. Wiley, NY, 1971, p. 268.

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.

MAPLE

A003218:=-(1-4*z+2*z**3)/(-1+6*z-9*z**2+3*z**3); [Conjectured by S. Plouffe in his 1992 dissertation.]

CROSSREFS

Sequence in context: A099236 A130581 A051236 this_sequence A058770 A049910 A077643

Adjacent sequences: A003215 A003216 A003217 this_sequence A003219 A003220 A003221

KEYWORD

nonn

AUTHOR

njas

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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