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Search: id:A141605
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| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 3, 3, 3, 1, 1, 2, 5, 5, 5, 5, 2, 1, 1, 2, 3, 9, 9, 9, 3, 2, 1, 1, 3, 5, 8, 23, 23, 8, 5, 3, 1, 1, 3, 8, 15, 25, 75, 25, 15, 8, 3, 1
(list; table; graph; listen)
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OFFSET
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1,23
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COMMENT
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Row sums are:
{1, 2, 3, 4, 5, 6, 17, 26, 39, 80, 179}.
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FORMULA
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t(n,m)=A006722(n)/(A006722(n-m)*A006722(m)).
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EXAMPLE
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{1},
{1, 1},
{1, 1, 1},
{1, 1, 1, 1},
{1, 1, 1, 1, 1},
{1, 1, 1, 1, 1, 1},
{1, 3, 3, 3, 3, 3, 1},
{1, 2, 5, 5, 5, 5, 2, 1},
{1, 2, 3, 9, 9, 9, 3, 2, 1},
{1, 3, 5, 8, 23, 23, 8, 5, 3, 1},
{1, 3, 8, 15, 25, 75, 25, 15, 8, 3, 1}
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MATHEMATICA
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Clear[a, t] (*A006722*) a[0] = a[1] =a[2] = a[3] = a[4] = a[5] = 1; a[n_] := a[n] = (a[n - 1]*a[n - 5] + a[n - 2]*a[ n - 4] + a[n - 3]^2)/a[n - 6]; Array[a, 23]; t[n_, m_] := a[n]/(a[n - m]*a[m]) Table[Table[Round[t[n, m]], {m, 0, n}], {n, 0, 10}]; Flatten[%]
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CROSSREFS
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Cf. A006722.
Sequence in context: A106694 A031355 A097675 this_sequence A073139 A122845 A135203
Adjacent sequences: A141602 A141603 A141604 this_sequence A141606 A141607 A141608
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KEYWORD
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nonn,uned,tabl
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AUTHOR
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Roger L. Bagula and Gary W. Adamson (rlbagulatftn(AT)yahoo.com), Aug 21 2008
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