Composite squarefree numbers n such that the ratio (n + 1/3)/(p(i) + 1/3) is an integer, where p(i) are the prime factors of n.
A226112
Composite squarefree numbers n such that the ratio (n + 1/3)/(p(i) + 1/3) is an integer, where p(i) are the prime factors of n.
Terms
- a(0) =133653a(1) =1280533a(2) =193638133a(3) =514276565a(4) =1421486733a(5) =1567953933a(6) =3857178453a(7) =3973200933a(8) =5411272533a(9) =7694639213a(10) =8021152533a(11) =8469827669a(12) =9820706133a(13) =15832804533a(14) =18238619373a(15) =22356801133a(16) =23037766613a(17) =25136796813a(18) =27315827733a(19) =32434329685a(20) =39817016633
External references
- oeis: A226112