Conjectured irregular triangle (with some rows blank) of numbers k such that prime(n) is the largest prime factor of k^3 - 1.

A223703

Conjectured irregular triangle (with some rows blank) of numbers k such that prime(n) is the largest prime factor of k^3 - 1.

Terms

    a(0) =2a(1) =4a(2) =3a(3) =9a(4) =16a(5) =22a(6) =18a(7) =7a(8) =11a(9) =30a(10) =5a(11) =25a(12) =67a(13) =191a(14) =10a(15) =26a(16) =100a(17) =121a(18) =211a(19) =581a(20) =676a(21) =6a(22) =36a(23) =49a(24) =79a(25) =87a(26) =165a(27) =6205a(28) =178a(29) =13

External references