Numbers k such that k! + 2^k + 3 or k! + 2^k - 3 is prime.
A263469
Numbers k such that k! + 2^k + 3 or k! + 2^k - 3 is prime.
Terms
- a(0) =0a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =15a(8) =17a(9) =21a(10) =42a(11) =57a(12) =99a(13) =312a(14) =372a(15) =15030
External references
- oeis: A263469