A020505 Cyclotomic polynomials at x=-6.

-6, -7, -5, 31, 37, 1111, 43, 39991, 1297, 46441, 1555, 51828151, 1261, 1865813431, 55987, 1950271, 1679617, 2418094206391, 46873, 87051391430071, 1634221, 2527867231, 72559411, 112818603293371831, 1678321

Offset: 0

Author

Simon Plouffe

Keywords

• sign

Links

• Paolo Xausa, Table of n, a(n) for n = 0..1000
• Index entries for cyclotomic polynomials, values at X

Programs

Maple

with(numtheory,cyclotomic); f := n->subs(x=-6,cyclotomic(n,x)); seq(f(i),i=0..64);

Mathematica

Join[{-6}, Cyclotomic[Range[50], -6]] (* Paolo Xausa, Feb 26 2024 *)