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A035113
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Numbers != 2 (mod 4) listed in order of increasing totient function phi (A000010).
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4
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1, 3, 4, 5, 8, 12, 7, 9, 15, 16, 20, 24, 11, 13, 21, 28, 36, 17, 32, 40, 48, 60, 19, 27, 25, 33, 44, 23, 35, 39, 45, 52, 56, 72, 84, 29, 31, 51, 64, 68, 80, 96, 120, 37, 57, 63, 76, 108, 41, 55, 75, 88, 100, 132, 43, 49, 69, 92, 47, 65, 104, 105, 112, 140, 144
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OFFSET
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1,2
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LINKS
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EXAMPLE
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phi(1)=1, phi(3)=2, phi(4)=2, phi(5)=4, ...
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PROG
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(Python) from sympy import totient as A000010
def lov(n): return sorted([[A000010(n), n] for n in range(1, n) if n%4 != 2])
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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