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A278119
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a(n) is the index of the first occurrence of n in A278116.
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1
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1, 2, 3, 5, 9, 27, 81, 163, 3451, 7372, 82177, 3716, 2769544, 25899347, 357567610, 4229297109
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OFFSET
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1,2
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COMMENTS
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a(18) = 42945966786, but a(17) > 5*10^10.
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LINKS
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R. B. Eggleton, J. S. Kimberley and J. A. MacDougall, Square-free rank of integers, Journal of Combinatorial Mathematics and Combinatorial Computing Vol. 106, Issue August 2018, p. 185-207.
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CROSSREFS
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KEYWORD
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nonn,hard,more
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AUTHOR
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STATUS
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approved
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