-4875

Appears in sequences

• a(n) = -(1/2)*(n+2)*(n^2 - 6*n - 1).at n=23A028494
• a(n) = (-1)^n*n*(n+1)*(2*n-5)/6.at n=24A167386
• Values of n such that L(17) and N(17) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=38A227520
• Expansion of (1+4*x+x^2) / ((1-x)^3*(1+x)^4).at n=48A229834