Smallest base b such that there exist exactly n Wieferich pseudoprimes (composites c satisfying b^(c-1) == 1 (mod c^2)) less than b.

A255885

Smallest base b such that there exist exactly n Wieferich pseudoprimes (composites c satisfying b^(c-1) == 1 (mod c^2)) less than b.

Terms

    a(0) =17a(1) =65a(2) =145a(3) =485a(4) =649a(5) =1297a(6) =577a(7) =2024a(8) =5185a(9) =8182a(10) =7057a(11) =8749a(12) =14401a(13) =30753a(14) =56449a(15) =57601a(16) =77401a(17) =129473a(18) =51841a(19) =129601a(20) =254017a(21) =296449a(22) =202501a(23) =389377

External references