|
| |
| |
|
|
|
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; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,23
|
|
|
COMMENTS
| Row sums are:
{1, 2, 3, 4, 5, 6, 17, 26, 39, 80, 179}.
|
|
|
FORMULA
| t(n,m)=A006722(n)/(A006722(n-m)*A006722(m)).
|
|
|
EXAMPLE
| {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}
|
|
|
MATHEMATICA
| 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[%]
|
|
|
CROSSREFS
| Cf. A006722.
Sequence in context: A031355 A177228 A097675 * A073139 A122845 A135203
Adjacent sequences: A141602 A141603 A141604 * A141606 A141607 A141608
|
|
|
KEYWORD
| nonn,uned,tabl
|
|
|
AUTHOR
| Roger L. Bagula and Gary W. Adamson (rlbagulatftn(AT)yahoo.com), Aug 21 2008
|
| |
|
|
