Numbers n such that 213*2^n-1 is prime.

Terms

a(0) =4a(1) =10a(2) =19a(3) =30a(4) =36a(5) =47a(6) =80a(7) =82a(8) =92a(9) =100a(10) =103a(11) =114a(12) =126a(13) =140a(14) =144a(15) =152a(16) =170a(17) =210a(18) =264a(19) =514a(20) =726a(21) =967a(22) =1662a(23) =2423a(24) =3116a(25) =3974a(26) =4396a(27) =5735a(28) =6680a(29) =6707