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A325898
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Digits of the 2-adic integer 7^(1/5).
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4
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1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 0
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OFFSET
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0
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LINKS
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FORMULA
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a(n) = 0 if A325894(n)^5 - 7 is divisible by 2^(n+1), otherwise a(n) = 1.
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EXAMPLE
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Equals ...1110111000101111111110000100011011100111.
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PROG
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(PARI) a(n) = lift(sqrtn(7+O(2^(n+1)), 5))\2^n
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CROSSREFS
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Digits of p-adic fifth-power roots:
this sequence (2-adic, 7^(1/5));
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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