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Search: id:A141690
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| 1, 1, 1, 1, 6, 1, 1, 19, 19, 1, 1, 48, 126, 48, 1, 1, 109, 594, 594, 109, 1, 1, 234, 2367, 4812, 2367, 234, 1, 1, 487, 8565, 31203, 31203, 8565, 487, 1, 1, 996, 29188, 176412, 312310, 176412, 29188, 996, 1, 1, 2017, 95644, 910300, 2620582, 2620582, 910300
(list; graph; listen)
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OFFSET
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1,5
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COMMENT
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Row sums are:
{1, 2, 8, 40, 224, 1408, 10016, 80512, 725504, 7257088}.
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FORMULA
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t(n,m)=(2*A008292(n,m)-A007318(n,m)).
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EXAMPLE
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{1},
{1, 1},
{1, 6, 1},
{1, 19, 19, 1},
{1, 48, 126, 48, 1},
{1, 109, 594, 594, 109, 1},
{1, 234, 2367, 4812, 2367, 234, 1},
{1, 487, 8565, 31203, 31203, 8565, 487, 1},
{1, 996, 29188, 176412, 312310, 176412, 29188, 996, 1},
{1, 2017, 95644, 910300, 2620582, 2620582, 910300, 95644, 2017, 1}
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MATHEMATICA
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Table[Table[(2*Sum[(-1)^j Binomial[n + 1, j](k + 1 - j)^n, {j, 0, k + 1}] - Binomial[n - 1, k]), {k, 0, n - 1}], {n, 1, 10}]; Flatten[%]
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CROSSREFS
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Cf. A008292, A007318.
Sequence in context: A157268 A146959 A157632 this_sequence A146957 A146988 A060972
Adjacent sequences: A141687 A141688 A141689 this_sequence A141691 A141692 A141693
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KEYWORD
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nonn,uned
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AUTHOR
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Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Sep 09 2008
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