OFFSET
2,2
LINKS
Amiram Eldar, Table of n, a(n) for n = 2..92
FORMULA
MATHEMATICA
t = Range[0, 60]! CoefficientList[Series[Sec@x + Tan@x, {x, 0, 60}], x]; f[n_] := (Rest[t][[Prime@n]] - (-1)^((Prime@n - 1)/2))/Prime@n; Array[f, 11, 2] (* Robert G. Wilson v, Sep 04 2010 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Shevelev, Sep 03 2010
EXTENSIONS
Extended by R. J. Mathar, Sep 19 2010
a(8) onwards from Robert G. Wilson v, Sep 04 2010
STATUS
approved