cp's OEIS Frontend

A213364 Total number of states of the first n subshells of the nuclear shell model in which the subshells are ordered by energy level in increasing order.

%I A213364 #24 Jul 22 2012 17:21:37
%S A213364 2,6,8,14,16,20,28,32,38,40,50,56,64,66,70,82,90,94,108,118,120,126,
%T A213364 136,148,164,170,172,180,184
%N A213364 Total number of states of the first n subshells of the nuclear shell model in which the subshells are ordered by energy level in increasing order.
%C A213364 First differs from A212124 at a(12).
%D A213364 I. Talmi, Simple Models of Complex Nuclei, Hardwood Academic Publishers (1993).
%F A213364 a(n) = 2*A213363(n).
%e A213364 Written as an irregular triangle in which row j is related to the j-th shell of nucleus. Note that row 4 has only one term. Triangle begins:
%e A213364 2;
%e A213364 6,     8;
%e A213364 14,   16,  20;
%e A213364 28;
%e A213364 32,   38,  40,  50;
%e A213364 56,   64,  66,  70,  82;
%e A213364 90,   94, 108, 118, 120, 126;
%e A213364 136, 148, 164, 170, 172, 180, 184;
%e A213364 ...
%e A213364 First seven terms of right border give the "magic numbers" A018226
%Y A213364 Partial sums of A213362. Other versions are A210984, A212014, A212124, A213374.
%Y A213364 Cf. A018226, A212121-A212124, A213361, A213363.
%K A213364 nonn,tabf,hard,more
%O A213364 1,1
%A A213364 _Omar E. Pol_, Jun 23 2012