|
|
A020502
|
|
Cyclotomic polynomials at x=-3.
|
|
2
|
|
|
-3, -4, -2, 7, 10, 61, 13, 547, 82, 703, 121, 44287, 73, 398581, 1093, 8401, 6562, 32285041, 757, 290565367, 5905, 682969, 88573, 23535794707, 6481, 3472494301, 797161, 387400807, 478297, 17157594341221, 4561, 154418349070987, 43046722, 4482983209, 64570081, 374857981681
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,1
|
|
LINKS
|
|
|
MAPLE
|
with(numtheory, cyclotomic); f := n->subs(x=-3, cyclotomic(n, x)); seq(f(i), i=0..64);
|
|
MATHEMATICA
|
Join[{-3}, Cyclotomic[Range[50], -3]] (* Paolo Xausa, Feb 26 2024 *)
|
|
PROG
|
(PARI) a(n) = if (n, polcyclo(n, -3), -3); \\ Michel Marcus, Oct 30 2018
|
|
CROSSREFS
|
|
|
KEYWORD
|
sign
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|