Composite numbers such that n^(b^n) == (-1)^b (mod C_b(n)), where C_b(n) = n*b^n+1 (A210339).
A246809
Composite numbers such that n^(b^n) == (-1)^b (mod C_b(n)), where C_b(n) = n*b^n+1 (A210339).
Terms
- a(0) =12801a(1) =136497879001a(2) =422240040001
External references
- oeis: A246809