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A058964
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Decimal expansion of series-parallel constant.
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2
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2, 8, 0, 8, 3, 2, 6, 6, 6, 9, 8, 4, 2, 0, 0, 3, 5, 5, 3, 9, 3, 2
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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REFERENCES
| J. W. Moon, Some enumerative results on series-parallel networks, Annals Discrete Math., 33 (1987), 199-226.
J. Riordan and C. E. Shannon, The number of two-terminal series-parallel networks, J. Math. Phys., 21 (1942), 83-93. Reprinted in Claude Elwood Shannon: Collected Papers, edited by N. J. A. Sloane and A. D. Wyner, IEEE Press, NY, 1993, pp. 560-570.
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LINKS
| O. Golinelli, Asymptotic behavior of two-terminal series-parallel networks.
S. R. Finch, Series-parallel networks
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FORMULA
| This number, c, is defined by Product_{n=1..inf} (1-c^n)^(-A000669[n]) = 2.
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EXAMPLE
| .2808326669842003553932...
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CROSSREFS
| See A058965 for continued fraction expansion. Cf. A000084, A000669.
Sequence in context: A020860 A188934 A058655 * A021360 A028256 A160636
Adjacent sequences: A058961 A058962 A058963 * A058965 A058966 A058967
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KEYWORD
| nonn,cons
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), E. M. Rains Jan 14 2001
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