Primes from merging of 7 successive digits in decimal expansion of cos(1).

Terms

a(0) =3058681a(1) =7174009a(2) =6074429a(3) =9766037a(4) =4206179a(5) =7922227a(6) =7744717a(7) =4517951a(8) =9343571a(9) =9245513a(10) =3932543a(11) =5943517a(12) =3757361a(13) =4327549a(14) =1754491a(15) =7511513a(16) =2227301a(17) =3135707a(18) =2322367a(19) =2236771a(20) =7873067a(21) =4067587a(22) =5111563a(23) =7145689