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Sierpiński numbers of the form k•2n+1

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Sierpiński numbers are odd numbers k for which k•2n+1 is composite for all natural numbers n.

See also

Table

There are 2 sequences in this Wiki:

k Covering set
78557 [3, 5, 7, 13, 19, 37, 73]
271129 [3, 5, 7, 13, 17, 241]
Proth primes