Numbers k such that p(k+1)# - p(k)# - 1 is prime where p(i)# = product of first i primes = A002110(i).
A128657
Numbers k such that p(k+1)# - p(k)# - 1 is prime where p(i)# = product of first i primes = A002110(i).
Terms
- a(0) =1a(1) =2a(2) =3a(3) =4a(4) =8a(5) =24a(6) =35a(7) =56a(8) =79a(9) =132a(10) =281a(11) =342a(12) =631a(13) =1350a(14) =4929a(15) =5952a(16) =8128
External references
- oeis: A128657