Search: id:A033547
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%I A033547
%S A033547 0,2,6,14,28,50,82,126,184,258,350,462,596,754,938,1150,1392,1666,1974,
%T A033547 2318,2700,3122,3586,4094,4648,5250,5902,6606,7364,8178,9050,9982,
%U A033547 10976,12034,13158,14350,15612,16946,18354,19838,21400,23042
%N A033547 Otto Haxel's guess for magic numbers of nuclear shells.
%C A033547 O. Haxel gave a construction procedure. The formulae are due to W. Lang.
%D A033547 O. Haxel, Die Entstehung des Schalenmodells der Atomkerne, Physikalische 
               Blaetter, vol. 50, p. 339, 1994.
%D A033547 O. Haxel et al., On the "Magic Numbers" in Nuclear Structure, Phys. Rev., 
               75 (1949), 1766.
%H A033547 V. Ladma, <a href="http://www.sweb.cz/vladimir_ladma/english/notes/texts/
               magicn.htm">Magic Numbers</a>
%F A033547 a(n) = n*(n^2+5)/3; g.f.: 2*x(x^2-x+1)/(1-x)^4.
%Y A033547 Equals 2*A004006, partial sums of A014206, 2*(partial sums of A000124). 
               Cf. A018226.
%Y A033547 Sequence in context: A101586 A121968 A161212 this_sequence A050531 A027083 
               A123991
%Y A033547 Adjacent sequences: A033544 A033545 A033546 this_sequence A033548 A033549 
               A033550
%K A033547 easy,nonn,nice
%O A033547 0,2
%A A033547 Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de)

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