References to A003658

Fundamental discriminants of real quadratic fields; indices of primitive positive Dirichlet L-series.
1, 5, 8, 12, 13, 17, 21, 24, 28, 29, 33, 37, 40, 41, 44, 53, 56, 57, 60, 61, 65, 69, 73, 76

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