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Search: id:A005674
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| A005674 |
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2^(n-1) + 2^[ n/2 ] + 2^[ (n-1)/2 ] - F(n+3).
(Formerly M2837)
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+0
2
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| 0, 0, 0, 0, 1, 3, 10, 25, 63, 144, 327, 711, 1534, 3237, 6787, 14056, 28971, 59283, 120894, 245457, 497167, 1004256, 2025199, 4077007, 8198334, 16467597, 33052491, 66293208
(list; graph; listen)
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OFFSET
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0,6
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REFERENCES
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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.
R. K. Guy, personal communication.
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LINKS
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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.
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MAPLE
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A005674:=-z**4/(2*z-1)/(z**2+z-1)/(-1+2*z**2); [Conjectured by S. Plouffe in his 1992 dissertation.]
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CROSSREFS
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A027558 divided by 2.
Sequence in context: A097763 A034506 A067988 this_sequence A089100 A089117 A026965
Adjacent sequences: A005671 A005672 A005673 this_sequence A005675 A005676 A005677
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KEYWORD
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nonn,easy
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AUTHOR
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njas
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