Numbers n such that n and n+-1 have 4 distinct prime factors.

Terms

a(0) =37961a(1) =44485a(2) =45695a(3) =50141a(4) =51429a(5) =55131a(6) =55385a(7) =61335a(8) =63365a(9) =64295a(10) =67165a(11) =68265a(12) =68475a(13) =70005a(14) =70091a(15) =71709a(16) =72709a(17) =76153a(18) =80445a(19) =81549a(20) =81719a(21) =82041a(22) =84435a(23) =85491a(24) =86241a(25) =90364a(26) =95381a(27) =97383a(28) =98021a(29) =99085