0,2

Except for 2, exponents e such that x^e-x+1 is reducible.

Sequence in context: A009409 A009431 A074216 this_sequence A147608 A039686 A038628

Adjacent sequences: A016919 A016920 A016921 this_sequence A016923 A016924 A016925

nonn,easy

N. J. A. Sloane (njas(AT)research.att.com).