Lesser of twin prime pairs of the form (40n - 21, 40n - 19).

Terms

a(0) =59a(1) =179a(2) =419a(3) =659a(4) =1019a(5) =1619a(6) =2339a(7) =3299a(8) =3539a(9) =4019a(10) =4259a(11) =5099a(12) =6299a(13) =6659a(14) =6779a(15) =8219a(16) =8819a(17) =9419a(18) =10139a(19) =10499a(20) =10859a(21) =11699a(22) =11939a(23) =12539a(24) =16139a(25) =16979a(26) =17579a(27) =18059a(28) =18539a(29) =19139