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Search: id:A107769
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| A107769 |
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Related to the conformational properties of alkanes. |
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+0
1
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| 0, 1, 2, 8, 19, 54, 130, 334, 806, 1995, 4816, 11746, 28357, 68748, 165972, 401388, 969036, 2341141, 5652014, 13649228
(list; graph; listen)
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OFFSET
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0,3
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REFERENCES
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Gy. Tasi and F. Mizukami, Quantum algebraic-combinatoric study of the conformational properties of n-alkanes, J. Math. Chemistry, 25, 1999, 55-64 (see p. 63).
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FORMULA
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(1/4) [Pell(n+3) - Pell(n+2) - 2*Pell(floor((n+4)/2)) + 1 ] (conjectured), with Pell(n) = A000129(n). - Ralf Stephan, Jun 2 2007
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CROSSREFS
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Sequence in context: A000158 A101427 A126877 this_sequence A026588 A026572 A074797
Adjacent sequences: A107766 A107767 A107768 this_sequence A107770 A107771 A107772
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KEYWORD
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more,nonn
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AUTHOR
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Emeric Deutsch (deutsch(AT)duke.poly.edu), Jun 12 2005
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