a(n) = smallest k having at least three prime divisors d such that (d + n) | (k + n).

Terms

a(0) =399a(1) =598a(2) =165a(3) =1886a(4) =715a(5) =2370a(6) =273a(7) =532a(8) =231a(9) =935a(10) =3445a(11) =828a(12) =1547a(13) =2821a(14) =1105a(15) =3710a(16) =12903a(17) =4182a(18) =6669a(19) =4732a(20) =2475a(21) =4466a(22) =2737a(23) =2706a(24) =1595a(25) =5658a(26) =10413a(27) =3542a(28) =7315a(29) =24225