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Proth primes of the form 19•2n+1

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Current data

k , b : 19 , 2
Type : Low
Count : 21
Nash : 828
Max n : 9,000,000
Date : 2021-04-01
6[1], 10[2], 46[3], 366[4], 1246[5], 2038[6], 4386[7], 4438[8], 6838[9], 7498[10], 7998[11], 9450[12], 11890[13], 17034[14], 23290[15], 73338[16], 149146[17], 323638[18], 853546[19], 2206266[20], 6833086[21]

Notes

History