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.

2, 6, 8, 14, 16, 20, 28, 32, 38, 40, 50, 56, 64, 66, 70, 82, 90, 94, 108, 118, 120, 126, 136, 148, 164, 170, 172, 180, 184

Offset: 1

Author

Omar E. Pol, Jun 23 2012

Keywords

• nonn
• tabf
• hard
• more

Comments

First differs from A212124 at a(12).

Examples

			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:
2;
6,     8;
14,   16,  20;
28;
32,   38,  40,  50;
56,   64,  66,  70,  82;
90,   94, 108, 118, 120, 126;
136, 148, 164, 170, 172, 180, 184;
...
First seven terms of right border give the "magic numbers" A018226
		

References

• I. Talmi, Simple Models of Complex Nuclei, Hardwood Academic Publishers (1993).

Crossrefs

Partial sums of A213362. Other versions are A210984, A212014, A212124, A213374.

Cf. A018226, A212121-A212124, A213361, A213363.

Formula

a(n) = 2*A213363(n).