a(n) is the first k such that n = Omega(k) = Omega(k-1) + Omega(k+1), or 0 if there is no such k, where Omega is A001222.
A338302
a(n) is the first k such that n = Omega(k) = Omega(k-1) + Omega(k+1), or 0 if there is no such k, where Omega is A001222.
Terms
- a(0) =2a(1) =4a(2) =8a(3) =56a(4) =80a(5) =624a(6) =1216a(7) =8576a(8) =66176a(9) =59049a(10) =386560a(11) =1476225a(12) =7354880a(13) =58989951a(14) =70184960a(15) =36315136a(16) =8044724224a(17) =39790739456a(18) =53730279424a(19) =96467701761
External references
- oeis: A338302