a(n) = A070864(n+8) - 4. 1, 1, 1, 3, 1, 3, 1, 3, 3, 3, 5, 3, 5, 3, 5, 3, 5, 5, 5, 7, 5, 7, 5, 7, 5, 7, 5, 7, 7, 7, 9, 7, 9, 7
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