References to A053051

Smallest integer m such that sum_(k=1 to m) d(k) is divisible by n, where d(k) (A000005) is the number of divisors of k.
1, 4, 2, 4, 3, 19, 6, 4, 10, 5, 20, 19, 17, 6, 15, 7, 32, 48, 23, 8, 24, 20, 9, 42, 16, 17, 10

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