|
Search: id:A142711
|
|
|
| A142711 |
|
A determinant sequence: M={{a(-1 + n), a(-2 + n), a(-3 + n)}, {a(-2 + n), a(-3 + n), a(-4 + n)}, {a(-3 + n), a(-4 + n), a(-5 + n)}} a(n)=Det[M]. |
|
+0
1
|
|
| 1, 2, 3, 5, 7, 1, -12, -228, 9143, -1133843, 400077995, -45302489148575, -7894734009904518933828, -18747504667646398964781036890058108, -959911201550764602188142115589327060336513904282657913
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
FORMULA
|
M={{a(-1 + n), a(-2 + n), a(-3 + n)}, {a(-2 + n), a(-3 + n), a(-4 + n)}, {a(-3 + n), a(-4 + n), a(-5 + n)}} a(n)=Det[M].
|
|
MATHEMATICA
|
Clear[a, n, m, k]; M = Table[Table[a[n - m - k - 1], {m, 0, 2}], {k, 0, 2}]; b = Det[M]; Table[a[i] = If[i == 0, 1, Prime[i]], {i, 0, 4}]; a[n_] := a[n] = b; Table[a[n], {n, 0, 15}]
|
|
CROSSREFS
|
Sequence in context: A130138 A130136 A032759 this_sequence A093338 A104212 A139751
Adjacent sequences: A142708 A142709 A142710 this_sequence A142712 A142713 A142714
|
|
KEYWORD
|
uned,sign
|
|
AUTHOR
|
Roger L. Bagula and Gary W. Adamson (rlbagulatftn(AT)yahoo.com), Sep 25 2008
|
|
|
Search completed in 0.005 seconds
|
