Composite squarefree numbers n such that p(i)-4 divides n+4, where p(i) are the prime factors of n.

Terms

a(0) =6a(1) =10a(2) =14a(3) =15a(4) =30a(5) =35a(6) =66a(7) =266a(8) =455a(9) =806a(10) =4154a(11) =4686a(12) =6665a(13) =10370a(14) =16646a(15) =22781a(16) =31146a(17) =36305a(18) =72086a(19) =205871a(20) =246506a(21) =473711a(22) =570011a(23) =653666a(24) =733586a(25) =900581a(26) =904046a(27) =1422410a(28) =1941971a(29) =1969565