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A249394
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Numbers k such that the k-th ménage number is prime.
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1
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OFFSET
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1,1
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COMMENTS
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This sequence is heuristically conjectured to grow doubly-exponentially.
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LINKS
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EXAMPLE
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The only known ménage primes are M(4) = 2, M(5) = 13, M(13) = 775596313, M(53) = 567525075138663383127158192994765939404930668817780601409606090331861, and M(8645).
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PROG
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CROSSREFS
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By definition, the inverse image of A000040 under the function A000179.
The ménage primes themselves are given in A249510.
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KEYWORD
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nonn,hard
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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