Numbers n such that (2*n)!/(2*n!)+1 is prime.
A091909
Numbers n such that (2*n)!/(2*n!)+1 is prime.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =5a(4) =6a(5) =11a(6) =12a(7) =36a(8) =95a(9) =372a(10) =842a(11) =2196a(12) =4755
External references
- oeis: A091909
A091909
Numbers n such that (2*n)!/(2*n!)+1 is prime.