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A213373
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Total number of pairs of states of the first n subshells of the nuclear shell model in which the subshells are ordered by energy level in increasing order.
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7
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1, 3, 4, 7, 8, 10, 14, 16, 19, 20, 25, 29, 32, 38, 40, 41, 45, 50, 57, 59, 62, 63
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OFFSET
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1,2
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COMMENTS
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First differs from A212123 at a(14). For more information see A213372.
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LINKS
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FORMULA
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EXAMPLE
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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:
1;
3, 4;
7, 8, 10;
14;
16, 19, 20, 25;
29, 32, 38, 40, 41;
45, 50, 57, 59, 62, 63;
...
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CROSSREFS
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KEYWORD
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nonn,tabf,hard,more
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AUTHOR
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STATUS
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approved
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