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A005601
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Decimal expansion of proton-to-electron mass ratio.
(Formerly M4470)
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3
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1, 8, 3, 6, 1, 5, 2, 6, 7, 3, 4, 3
(list;
constant;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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4,2
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COMMENTS
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Curiously, this ratio coincides with 6*Pi^5 = 1836.1181... up to 5 digits (first noticed in 1952 by Friedrich Lenz in the Physical Review). - Jean-François Alcover, Jul 27 2016
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REFERENCES
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John Barrow, The Constants of Nature, 367pp, Jonathan Cape, 2002.
K. R. Lang, Astrophysical Data: Planets and Stars, Springer-Verlag, NY, 1991.
NIST, 2018 CODATA recommended values (see NIST link).
Martin J. Rees. Just Six Numbers: the deep forces that shape the universe. Phoenix. 1999
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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EXAMPLE
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1836.15...
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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Updated using current NIST CODATA value. - Harvey P. Dale, May 20 2023
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STATUS
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approved
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