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Riesel primes of the form 217•2n-1

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Reserved! This sequence is currently reserved by: Thomas Ritschel

Current data

k , b : 217 , 2
Type : Low
Count : 21
Nash : 806
Max n : 7,000,000
Date : 2020-06-22
Reserved : Thomas RitschelThomas Ritschel/Reserved
1, 9, 21, 133, 233, 1393, 1453, 1769, 2041, 3985, 17501, 80341, 148089, 205525, 327829, 377581, 398605, 663509, 1026869, 1059961, 2092673

History