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Search: id:A156697
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| A156697 |
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General qp odd weighted combinations as : m=2;q=3: t(n,m)=If[m == 0, n!, Product[Product[1 - (2*i - 1)*( m + 1), {i, 0, k - 1}], {k, 1, n}]]; b(n,k,m)=If[n == 0, 1, t[n, m]/(t[k, m]*t[n - k, m])]. |
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+0 1
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| 1, 1, 1, 1, -2, 1, 1, 16, 16, 1, 1, -224, 1792, -224, 1, 1, 4480, 501760, 501760, 4480, 1, 1, -116480, 260915200, -3652812800, 260915200, -116480, 1, 1, 3727360, 217081446400, 60782804992000, 60782804992000, 217081446400, 3727360, 1, 1
(list; table; graph; listen)
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OFFSET
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0,5
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COMMENT
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Row sums are:
{1, 2, 0, 34, 1346, 1012482, -3131215358, 121999780331522,
34591292869081661442, 107137531255480378706493442,
-3432787564907030237721525583871998,...}.
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FORMULA
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m=2;q=3:
t(n,m)=If[m == 0, n!, Product[Product[1 - (2*i - 1)*( m + 1), {i, 0, k - 1}], {k, 1, n}]];
b(n,k,m)=If[n == 0, 1, t[n, m]/(t[k, m]*t[n - k, m])].
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EXAMPLE
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{1},
{1, 1},
{1, -2, 1},
{1, 16, 16, 1},
{1, -224, 1792, -224, 1},
{1, 4480, 501760, 501760, 4480, 1},
{1, -116480, 260915200, -3652812800, 260915200, -116480, 1},
{1, 3727360, 217081446400, 60782804992000, 60782804992000, 217081446400, 3727360, 1},
{1, -141639680, 263971038822400, -1921709162627072000, 38434183252541440000, -1921709162627072000, 263971038822400, -141639680, 1},
{1, 6232145920, 441359576911052800, 102819127037198860288000, 53465946059343407349760000, 53465946059343407349760000, 102819127037198860288000, 441359576911052800, 6232145920, 1},
{1, -311607296000, 970991069204316160000, -8595679020309824720076800000, 143032098897955483342077952000000, -3718834571346842566894026752000000, 143032098897955483342077952000000, -8595679020309824720076800000, 970991069204316160000, -311607296000, 1}
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MAPLE
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t[n_, m_] = If[m == 0, n!, Product[Product[1 - (2*i - 1)*( m + 1), {i, 0, k - 1}], {k, 1, n}]];
b[n_, k_, m_] = If[n == 0, 1, t[n, m]/(t[k, m]*t[n - k, m])];
Table[Flatten[Table[Table[b[n, k, m], {k, 0, n}], {n, 0, 10}]], {m, 0, 15}]
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CROSSREFS
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A156690, A156691, A156692, A156693
Sequence in context: A132318 A078089 A095836 this_sequence A154991 A090163 A124001
Adjacent sequences: A156694 A156695 A156696 this_sequence A156698 A156699 A156700
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KEYWORD
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sign,tabl,uned
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AUTHOR
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Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Feb 13 2009
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