Largest prime factor of the least number having exactly two odd prime factors that differ by 2^n.

A190359

Largest prime factor of the least number having exactly two odd prime factors that differ by 2^n.

Terms

    a(0) =5a(1) =7a(2) =11a(3) =19a(4) =37a(5) =67a(6) =131a(7) =263a(8) =523a(9) =1031a(10) =2053a(11) =4099a(12) =8209a(13) =16421a(14) =32771a(15) =65539a(16) =131101a(17) =262147a(18) =524341a(19) =1048583a(20) =2097169a(21) =4194371a(22) =8388619a(23) =16777259a(24) =33554473a(25) =67108961a(26) =13417757a(27) =268435459

External references