Numbers k such that k and k+1 are products of at least 6 primes.

Terms

a(0) =1215a(1) =3968a(2) =5103a(3) =5264a(4) =6560a(5) =7424a(6) =7695a(7) =8991a(8) =9375a(9) =9800a(10) =11024a(11) =11583a(12) =11744a(13) =12375a(14) =12879a(15) =13040a(16) =14175a(17) =14336a(18) =14624a(19) =15624a(20) =16064a(21) =16280a(22) =16767a(23) =16928a(24) =17199a(25) =17576a(26) =18224a(27) =21375a(28) =21735a(29) =22112