a(n) is the least k such that k^2 + k + 1 is divisible by the n-th power of a prime.
A372457
a(n) is the least k such that k^2 + k + 1 is divisible by the n-th power of a prime.
Terms
- a(0) =1a(1) =18a(2) =18a(3) =1047a(4) =1353a(5) =34967a(6) =82681a(7) =2387947a(8) =14906455a(9) =135967276a(10) =700917774a(11) =4655571260a(12) =18496858461a(13) =272170172759a(14) =950393245608
External references
- oeis: A372457