Array read by rows: row n lists the first 3 primes with n digits.

Terms

a(0) =2a(1) =3a(2) =5a(3) =11a(4) =13a(5) =17a(6) =101a(7) =103a(8) =107a(9) =1009a(10) =1013a(11) =1019a(12) =10007a(13) =10009a(14) =10037a(15) =100003a(16) =100019a(17) =100043a(18) =1000003a(19) =1000033a(20) =1000037a(21) =10000019a(22) =10000079a(23) =10000103a(24) =100000007a(25) =100000037a(26) =100000039a(27) =1000000007a(28) =1000000009a(29) =1000000021