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A243307
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a(n) = 2^phi(n) + phi(n).
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1
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3, 3, 6, 6, 20, 6, 70, 20, 70, 20, 1034, 20, 4108, 70, 264, 264, 65552, 70, 262162, 264, 4108, 1034, 4194326, 264, 1048596, 4108, 262162, 4108, 268435484, 264, 1073741854, 65552, 1048596, 65552, 16777240, 4108, 68719476772, 262162, 16777240, 65552
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OFFSET
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1,1
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LINKS
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FORMULA
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EXAMPLE
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phi(1) = 1 -> a(1) = 2^1 + 1 = 3.
phi(2) = 1 -> a(2) = 2^1 + 1 = 3.
phi(7) = 6 -> a(7) = 2^6 + 6 = 70.
phi(10) = 4 -> a(10) = 2^4 + 4 = 20.
(End)
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MAPLE
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MATHEMATICA
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Table[2^EulerPhi[n] + EulerPhi[n], {n, 1, 50}]
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PROG
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(Magma) [2^EulerPhi(n)+EulerPhi(n): n in [1..40]];
(GAP) List([1..1000], n -> 2^Phi(n) + Phi(n)); # Muniru A Asiru, Jan 23 2018
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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