Composite numbers of the form 2^k - 1 for which each prime divisor has the form 4j + 3.

A183076

Composite numbers of the form 2^k - 1 for which each prime divisor has the form 4j + 3.

Terms

    a(0) =63a(1) =1023a(2) =16383a(3) =32767a(4) =67108863a(5) =1073741823a(6) =17179869183a(7) =274877906943

External references