Primes from merging of 5 successive digits in decimal expansion of cos(1).

Terms

a(0) =86813a(1) =40093a(2) =36607a(3) =76603a(4) =66037a(5) =60373a(6) =42061a(7) =55381a(8) =11003a(9) =10039a(10) =77447a(11) =74471a(12) =45179a(13) =56087a(14) =83089a(15) =30893a(16) =57173a(17) =30089a(18) =85847a(19) =17971a(20) =16447a(21) =42331a(22) =23311a(23) =24551a(24) =94351a(25) =43517a(26) =70289a(27) =37573a(28) =61543a(29) =44917