Primes containing 777 as a substring.

Terms

a(0) =1777a(1) =2777a(2) =11777a(3) =19777a(4) =22777a(5) =26777a(6) =27773a(7) =27779a(8) =41777a(9) =43777a(10) =44777a(11) =47777a(12) =47779a(13) =50777a(14) =53777a(15) =57773a(16) =65777a(17) =67777a(18) =68777a(19) =71777a(20) =76777a(21) =77711a(22) =77713a(23) =77719a(24) =77723a(25) =77731a(26) =77743a(27) =77747a(28) =77761a(29) =77773