%I #30 Mar 11 2018 13:23:14
%S 2,1,8,7,6,9,1,2,6
%N Decimal expansion of atomic unit of velocity in SI units (meters/second).
%C Original name: Decimal expansion of Bohr N1 velocity constant: V_n1 = 2.187691415844453*10^6 (m/sec).
%H NIST, <a href="http://physics.nist.gov/cgi-bin/cuu/Value?auvel">CODATA Value: atomic unit of velocity</a>
%F sqrt(H/m) where H = 4.359743...*10^-18 J is one Hartree and m = A081801. - _R. J. Mathar_, Feb 06 2009
%F V_n1 = alpha * c = A003673 * A003678. - _Omar E. Pol_, Nov 07 2013
%e 2187691.26... m/s = 2187.69126... km/s. - _Omar E. Pol_, Nov 07 2013
%Y Cf. A003673, A003678, A081801, A229938.
%K cons,nonn
%O 7,1
%A _Benoit Cloitre_, Apr 10 2003
%E Offset corrected by _R. J. Mathar_, Feb 06 2009
%E Updated and new name by _Omar E. Pol_, Mar 11 2018