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Riesel primes of the form 99•10n-1

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Current data

k , b : 99 , 10
Count : 22
Nash : 3307
Max n : 400,000
Date : 2021-10-05
3, 4[1], 5, 9, 19, 25, 34[2], 70[3], 82[4], 718[5], 2035, 2494[6], 3369, 3953, 4219, 8524[7], 30943, 49375, 52082[8], 139670[9], 303255, 1536527
Remarks :
The sequence A257041 in OEIS
See also Near-repdigit 989...99 Studio Kamada
For additional even n history, see Williams 99•100n-1.

Notes

History