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A259970
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Triangle read by rows: coefficients eta(n,k) arising from the study of completely transitive graphs on n nodes.
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2
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1, 0, 1, 1, 3, 3, 6, 28, 42, 21, 91, 510, 1050, 945, 315, 2820, 18631, 48360, 61845, 39060, 9765, 177661, 1351413, 4220433, 6942915, 6357015, 3075975, 615195
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,5
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LINKS
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EXAMPLE
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Triangle begins:
1,
0,1,
1,3,3,
6,28,42,21,
91,510,1050,945,315,
2820,18631,48360,61845,39060,9765,
177661,1351413,4220433,6942915,6357015,3075975,615195,
...
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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