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A143084
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Triangle read by rows: T(n,m) = (n + m)!.
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2
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1, 1, 2, 2, 6, 24, 6, 24, 120, 720, 24, 120, 720, 5040, 40320, 120, 720, 5040, 40320, 362880, 3628800, 720, 5040, 40320, 362880, 3628800, 39916800, 479001600, 5040, 40320, 362880, 3628800, 39916800, 479001600, 6227020800, 87178291200
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,3
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COMMENTS
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Row sums are: 1, 3, 32, 870, 46224, 4037880, 522956160, 93928267440, 22324392518400, 6780385526302080, 2561327494111411200, ...
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LINKS
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FORMULA
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T(n,m) = (n + m)!.
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EXAMPLE
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Triangle begins:
{1},
{1, 2},
{2, 6, 24},
{6, 24, 120, 720},
{24, 120, 720, 5040, 40320},
{120, 720, 5040, 40320, 362880, 3628800},
{720, 5040, 40320, 362880, 3628800, 39916800, 479001600},
{5040, 40320, 362880, 3628800, 39916800, 479001600, 6227020800, 87178291200},
...
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MATHEMATICA
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t[n_, m_] := (n + m)!; Table[Table[t[n, m], {m, 0, n}], {n, 0, 10}]; Flatten[%]
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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