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Riesel primes of the form 19401•2n-1

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Current data

k , b : 19401 , 2  (sieve)
Type : 3
Count : 16
Nash : 1081
Max n : 1,000,000
Date : 2023-12-07
5, 9, 131, 275, 281, 365, 383, 2133, 3705, 6575, 9299, 10089, 18335, 31353, 297509, 3086450[1]
Remarks :
For additional even n history, see CRUS Liskovets-Gallot search at Riesel 19401•4n-1.

Sieves: p=800T, 28892 odd n candidates 1000000<n<=3100000; p=15T, 17947 even n candidates 150000<n<=3100000

Notes

History