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Table of n, a(n) for n=1..38.
Joerg Arndt, Matters Computational (The Fxtbook), section 42.6.3 "The number of binary normal bases", pp. 904-907.
Joerg Arndt, C++ program used for computing this sequence
a(n) = A027362(n) - A107222(n).
a(n) = 0 if 2^n - 1 is prime.
Cf. A027362 (primitive normal polynomials), A107222.
Sequence in context: A256658 A094581 A040080 * A098289 A152020 A055516
Adjacent sequences: A272030 A272031 A272032 * A272034 A272035 A272036
Joerg Arndt, Apr 18 2016