%I #12 Aug 15 2020 08:05:44
%S 2,3,5,8,13,17,18,21,33,34,38
%N Numbers not represented by a known atomic weight as given in Francis W. Aston's Nobel lecture in 1922.
%H Francis W. Aston, <a href="https://www.nobelprize.org/prizes/chemistry/1922/aston/lecture/">Mass spectra and isotopes</a>, Nobel Lecture, December 12, 1922. See p. 18.
%Y Cf. A007656.
%K nonn,fini,full
%O 1,1
%A _Robert G. Wilson v_, May 07 2002
%E Stripped data to original list on page 18 of Aston's lecture by _Elijah Beregovsky_, Aug 15 2020.