Numbers n such that n-1, n, and n+1 are the product of 4 distinct primes.

Terms

a(0) =203434a(1) =214490a(2) =225070a(3) =258014a(4) =294594a(5) =313054a(6) =315722a(7) =352886a(8) =389390a(9) =409354a(10) =418846a(11) =421630a(12) =452354a(13) =464386a(14) =478906a(15) =485134a(16) =500906a(17) =508046a(18) =508990a(19) =526030a(20) =528410a(21) =538746a(22) =542270a(23) =542794a(24) =548302a(25) =556870a(26) =559690a(27) =569066a(28) =571234a(29) =579886