OFFSET
0,3
COMMENTS
This polynomial (evaluated over the rationals) arises in demonstrating the impossibility of trisecting an arbitrary angle by compass and straightedge.
LINKS
Wikipedia, Angle trisection
Index entries for linear recurrences with constant coefficients, signature (4,-6,4,-1).
FORMULA
a(n) = 2*A144129(n)-1.
MATHEMATICA
Table[8n^3-6n-1, {n, 0, 37}] (* James C. McMahon, Feb 05 2024 *)
CROSSREFS
KEYWORD
sign,easy
AUTHOR
Darío Clavijo, Feb 05 2024
STATUS
approved