A143422

Number of even numbers k such that phi(k) = n, where n runs through the values (A002202) taken by phi.

1, 2, 3, 2, 4, 1, 4, 5, 2, 3, 1, 7, 1, 1, 6, 5, 6, 2, 2, 1, 9, 1, 1, 2, 1, 5, 7, 1, 1, 11, 1, 8, 1, 4, 4, 2, 13, 2, 1, 2, 1, 5, 1, 4, 2, 11, 1, 8, 1, 4, 1, 1, 2, 16, 1, 1, 4, 10, 2, 2, 1, 8, 1, 6, 1, 5, 3, 1, 17, 1, 1, 5, 2, 3, 1, 2, 12, 3, 1, 6, 1, 1, 4, 1, 21, 1, 5, 9, 2, 1, 7, 1, 1, 3, 5, 5, 1

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