OFFSET
1,1
COMMENTS
The cyclotomic polynomial Phi(33p,x) is flat only for p in this sequence.
LINKS
Georg Fischer, Table of n, a(n) for n = 1..1000
MATHEMATICA
Flatten[Table[Select[33*n+{-8, -7, -1, 1, 7, 8}, PrimeQ], {n, 50}]]
CROSSREFS
KEYWORD
nonn
AUTHOR
T. D. Noe, Jun 17 2009
EXTENSIONS
a(1)=7 inserted by Georg Fischer, Jul 26 2020
STATUS
approved