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Table of n, a(n) for n=1..81.
(PARI) direuler(p=2, 101, 1/(1-(kronecker(m, p)*(X-X^2))-X))
Sequence in context: A261084 A035144 A157045 * A025881 A039804 A277537
Adjacent sequences: A035205 A035206 A035207 * A035209 A035210 A035211
N. J. A. Sloane.