A243857 - OEIS

A243857

Odd numbers n divisible by 3 such that for all k >= 1 the numbers n*2^k + 1 and n*2^(k+1) + 1 do not form a pair of primes.

%I #5 Jun 12 2014 13:24:21

%S 32469,42717,45009,57669,64377,64893,66741,76389,78363,81723,95259,

%T 95283,165567,203811,216627,218193,218949,240819,255153,272523,282147,

%U 308481,317841,324981,327879,338733,347289,355479,359847,364383,414417,424917,425829,433107

%N Odd numbers n divisible by 3 such that for all k >= 1 the numbers n*2^k + 1 and n*2^(k+1) + 1 do not form a pair of primes.

%Y Cf. A243858.

%K nonn

%O 1,1

%A _Arkadiusz Wesolowski_, Jun 12 2014