a(n) = Sum_{k=1..prime(n)-1} (-k/prime(n)) * 3^(k-1) / 2, where (p/q) is the Legendre symbol of p and q.
A382066
a(n) = Sum_{k=1..prime(n)-1} (-k/prime(n)) * 3^(k-1) / 2, where (p/q) is the Legendre symbol of p and q.
Terms
- a(0) =1a(1) =8a(2) =151a(3) =8083a(4) =70568a(5) =8910416a(6) =39392803a(7) =7701058213
External references
- oeis: A382066