Numbers k with property that 6*k+1 is prime and uses only digits 2 and 3.

Terms

a(0) =37a(1) =5372a(2) =5387a(3) =5537a(4) =38722a(5) =38887a(6) =53872a(7) =388722a(8) =388887a(9) =537037a(10) =537222a(11) =538887a(12) =555372a(13) =3703887a(14) =3705372a(15) =3705387a(16) =3870372a(17) =3870537a(18) =3887037a(19) =5387037a(20) =5537037a(21) =37220537a(22) =37222222a(23) =38705372a(24) =38705537a(25) =38870372a(26) =38870537a(27) =53703887