-3029

Appears in sequences

• Values of n such that L(12) and N(12) 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=7A227515
• Expansion of 1/((1 - x + x^3)^2 + 4*x^4).at n=14A375288