a(n) = least m such that m and m+n are both products of exactly n distinct primes.

A097978

a(n) = least m such that m and m+n are both products of exactly n distinct primes.

Terms

    a(0) =1a(1) =2a(2) =33a(3) =102a(4) =1326a(5) =115005a(6) =31295895a(7) =159282123a(8) =9617162170

External references