Primes p such that (p-1)/ord(2,p) > (q-1)/ord(2,q) for odd primes q < p.

Terms

a(0) =3a(1) =7a(2) =31a(3) =73a(4) =127a(5) =601a(6) =683a(7) =1103a(8) =1801a(9) =2731a(10) =5419a(11) =8191a(12) =43691a(13) =61681a(14) =65537a(15) =121369a(16) =122921a(17) =131071a(18) =178481a(19) =262657a(20) =524287a(21) =2099863a(22) =2796203a(23) =6700417a(24) =10567201a(25) =13264529a(26) =20394401a(27) =48544121a(28) =97685839a(29) =112901153