A307220 Record values in A039951.

1093, 66161, 46145917691

Offset

1,1

Links

Table of n, a(n) for n=1..3.

Formula

a(n) = A039951(A278611(n)).

Example

For n = 2: The second prime p that is the smallest base-b Wieferich prime of a record size among integers b > 1 is 66161 for b = 6, so a(2) = 66161.

Prog

(PARI) smallest_w_prime(n) = forprime(p=1, , if(Mod(n, p^2)^(p-1)==1, return(p)))
my(r=0, b=2, swp=0); while(1, swp=smallest_w_prime(b); if(swp > r, print1(swp, ", "); r=swp); b++)

Crossrefs

Cf. A039951, A278611.

Sequence in context: A266829 A203858 A115192 * A091674 A022197 A259909

Adjacent sequences: A307217 A307218 A307219 * A307221 A307222 A307223

Keyword

nonn,hard,more,bref

Author

Felix Fröhlich, Mar 29 2019

Status

approved