OFFSET
1,3
COMMENTS
See A192232.
MATHEMATICA
q[x_] := x + 1;
reductionRules = {x^y_?EvenQ -> q[x]^(y/2),
x^y_?OddQ -> x q[x]^((y - 1)/2)};
t = Table[
Last[Most[
FixedPointList[Expand[#1 /. reductionRules] &,
Cyclotomic[n, x]]]], {n, 1, 50}];
Table[Coefficient[Part[t, n], x, 0], {n, 1, 50}] (* A192233 *)
Table[Coefficient[Part[t, n], x, 1], {n, 1,
50}] (* A051258 Fibocyclotomic numbers *)
(* by Peter J. C. Moses, Jun 25 2011 *)
CROSSREFS
KEYWORD
sign
AUTHOR
Clark Kimberling, Jun 26 2011
STATUS
approved