-2005

Appears in sequences

• a(n) = (-1)^n * Sum_{i=0..n} binomial(n+1,i+1)*prime(i+1).at n=7A050513
• Expansion of 1/(x^5 - 2*x^4 + x^3 - 2*x^2 + x - 1).at n=35A129704
• Difference 2*k - A003961(k) computed for k for which this difference divides difference (A003961(k)-sigma(k)), where A003961 is fully multiplicative with a(prime(i)) = prime(i+1).at n=17A379216