OFFSET
1,1
EXAMPLE
{2},
{2},
{8, 0, 2},
{48, 0, 6},
{384, 0, 32, 0, -10},
{3840, 0, 240, 0, -110},
{46080, 0, 2304, 0, -1368, 0, 21},
{645120, 0, 26880, 0, -19488,0, 448},
{10321920, 0, 368640, 0, -314880, 0, 8992, 0, -32},
{185794560, 0, 5806080, 0, -5702400, 0, 186912, 0, -1152},
{3715891200, 0, 103219200, 0, -114508800, 0, 4131840, 0, -34280, 0, 46}
...
MATHEMATICA
No[x, -1] = 0;
No[x, 0] = 1/x;
No[x, 1] = 1/x^2;
No[x, 2] = (x^2 + 4)/x^3;
No[x_, n_] := No[x, n] = (2*n/x)*No[ x, n - 1] + (-n/(n - 2))*No[x, n - 2] + Ceiling[(2*( n - 1)/((n - 2)))*Sin[(n - 1)*Pi/2]]/x;
Table[ExpandAll[2*x^(n + 1)*No[x, n]], {n, 0, 10}];
a = Table[CoefficientList[2*x^(n + 1)*No[x, n], x], {n, 0, 10}];
Flatten[a]
CROSSREFS
KEYWORD
uned,tabf,sign,less
AUTHOR
Roger L. Bagula, Apr 09 2008
STATUS
approved