-8193

Appears in sequences

• a(2*n) = -(2^(2*n+1) + 1), a(2*n+1) = (2^(n+1) - (-1)^n)^2.at n=12A105951
• Partial sums of Berstel sequence (A007420).at n=20A178885
• Dirichlet inverse of function f(n) = 1 + A048675(n), where A048675(n) is fully additive with a(p) = 2^(1-PrimePi(p)).at n=42A359795
• Dirichlet inverse of A005941.at n=42A364574