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Search: id:A143084
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| A143084 |
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Triangle sequence: t(n,m)=(n+m)!. |
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+0
1
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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, 40320
(list; graph; listen)
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OFFSET
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1,3
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COMMENT
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Row sums are:
{1, 3, 32, 870, 46224, 4037880, 522956160, 93928267440, 22324392518400, 6780385526302080, 2561327494111411200}.
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FORMULA
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t(n,m)=(n+m)!.
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EXAMPLE
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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},
{40320, 362880, 3628800, 39916800, 479001600, 6227020800, 87178291200,1307674368000, 20922789888000},
{362880, 3628800, 39916800, 479001600, 6227020800, 87178291200, 1307674368000,20922789888000, 355687428096000, 6402373705728000},
{3628800, 39916800, 479001600, 6227020800, 87178291200, 1307674368000, 20922789888000, 355687428096000, 6402373705728000, 121645100408832000, 2432902008176640000}
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MATHEMATICA
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Clear[t, n, m]; 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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Sequence in context: A138801 A069466 A141902 this_sequence A076741 A093453 A052660
Adjacent sequences: A143081 A143082 A143083 this_sequence A143085 A143086 A143087
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KEYWORD
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nonn,uned
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AUTHOR
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Roger L. Bagula and Gary W. Adamson (rlbagulatftn(AT)yahoo.com), Oct 16 2008
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