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A123281
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Leading diagonal of A123260.
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3
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1, 1, 1, 5, 19, 205, 1795, 36317, 636331, 23679901, 805351531, 56294206205, 3735873535339, 502757743028605, 65725984337422795, 17309316971673776957, 4485620580863732681131
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,4
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REFERENCES
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R. W. Robinson, Numerical implementation of graph counting algorithms, AGRC Grant, Math. Dept., Univ. Newcastle, Australia, 1977.
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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