Triangle read by rows in which row n lists prime factors of p^p - 1 where p = prime(n).

Terms

a(0) =3a(1) =2a(2) =13a(3) =2a(4) =2a(5) =11a(6) =71a(7) =2a(8) =3a(9) =29a(10) =4733a(11) =2a(12) =5a(13) =15797a(14) =1806113a(15) =2a(16) =2a(17) =3a(18) =53a(19) =264031a(20) =1803647a(21) =2a(22) =2a(23) =2a(24) =2a(25) =10949a(26) =1749233a(27) =2699538733a(28) =2a(29) =3