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A362199
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Decimal expansion of the sum of the reciprocals of the Busy Beaver numbers (A060843).
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1
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OFFSET
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1,2
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COMMENTS
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Equal to 1/BB(1) + 1/BB(2) + 1/BB(3) + ...
A homework assignment in Scott Aaronson's "PHYS771 Lecture 3: Gödel, Turing, and Friends" (see links) asks if 1/BB(1) + 1/BB(2) + 1/BB(3) + ... is a computable real number. Scott Aaronson's "PHYS771 Lecture 4: Minds and Machines" (see links), which provides the answers to the homework assignment, proves that the number is not computable.
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LINKS
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FORMULA
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EXAMPLE
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1.223631...
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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