References to A151552

G.f.: Prod_{ k >= 1} (1 + x^(2^k-1) + x^(2^k)).
1, 1, 1, 1, 2, 2, 1, 1, 2, 2, 2, 3, 4, 3, 1, 1, 2, 2, 2, 3, 4, 3, 2, 3, 4, 4, 5, 7, 7, 4, 1, 1, 2, 2

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