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A283051 Positive integers n such that none of the primes of the form k*2^n + 1 (with k odd) divide any Fermat number F(m) = 2^(2^m) + 1, m >= 0. 0
3, 5, 6, 10 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Conjecture: sequence is infinite.
a(5) >= 18.
LINKS
Eric Weisstein's World of Mathematics, Fermat Number
CROSSREFS
Sequence in context: A054871 A248644 A242197 * A244671 A232531 A182637
KEYWORD
nonn,hard,more
AUTHOR
STATUS
approved

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Last modified March 29 09:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)