3,2

The estimate is continually changing.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

John Barrow, The Constants of Nature, 367 pp., Jonathan Cape, 2002.

E. R. Cohen and B. N. Taylor, The 1986 adjustment of the fundamental physical constants, Rev. Modern Phys., 59 (1987), 1121-1148.

K. R. Lang, Astrophysical Data: Planets and Stars, Springer-Verlag, NY, 1991.

Martin J. Rees. Just Six Numbers: the deep forces that shape the universe. Phoenix. 1999

NIST, Constants, Units and Uncertainty

N. Kosinov, Unexpected Connection of Three Major Constants

N. Kosinov, Connection of Three Major Constants

Anonymous, Fine structure constant

Robert P. Munafo, Notable Properties of Specific Numbers. [From Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 10 2008]

1/alpha = 137.035999679, standard uncertainty 0.000000094

Cf. A003673, A082726.

Sequence in context: A127584 A124919 A033920 this_sequence A021031 A086729 A134976

Adjacent sequences: A005597 A005598 A005599 this_sequence A005601 A005602 A005603

cons,nonn

N. J. A. Sloane (njas(AT)research.att.com), Mira Bernstein

Updated May 20 2003

Updated by Omar E. Pol (info(AT)polprimos.com), Aug 09 2009