A104959 Primes from merging of 3 successive digits in decimal expansion of Cos(1).

139, 397, 971, 607, 373, 617, 179, 227, 811, 947, 179, 571, 173, 311, 337, 541, 173, 179, 797, 971, 479, 233, 331, 311, 179, 139, 433, 359, 757, 641, 449, 491, 751, 151, 131, 227, 631, 313, 823, 223, 367, 677, 401, 151, 593, 787, 227, 587, 617, 563, 571