Smallest number k such that k and k+1 are both of the form p*q^n where p and q are distinct primes.
A215199
Smallest number k such that k and k+1 are both of the form p*q^n where p and q are distinct primes.
Terms
- a(0) =14a(1) =44a(2) =135a(3) =2511a(4) =8991a(5) =29888a(6) =916352a(7) =12393728a(8) =155161088a(9) =2200933376a(10) =6856828928a(11) =689278976a(12) =481758175232
External references
- oeis: A215199