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A064416
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Number of integers q such that phiter(q)=n where phiter(n) = A064415(n).
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2
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1, 2, 5, 11, 26, 59, 137, 312, 719, 1651, 3816, 8757, 20202, 46440, 106957, 245989, 566561, 1303968, 3002247, 6910122, 15909143
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OFFSET
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0,2
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LINKS
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FORMULA
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If 2<=n<=6, a(n)=a(n-1)+3*a(n-2).
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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Christian WEINSBERG (cweinsbe(AT)fr.packardbell.org), Sep 30 2001
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EXTENSIONS
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STATUS
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approved
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