A240113 - OEIS

A240113

Integers for which the smallest m in A040081 such that n*2^m - 1 is prime (A038699) increases.

1, 13, 23, 43, 59, 88, 127, 148, 659

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OFFSET

1,2

COMMENTS

Where records occur in A040081. A103963 gives the record values.

The next candidate is 2293.

LINKS

PROG

(PARI) a=0; for(n=1, 148, m=0; while(!ispseudoprime(n*2^m-1), m++); if(m>a, a=m; print1(n, ", ")));

CROSSREFS

KEYWORD

nonn,more

AUTHOR

STATUS

approved