-2889

Appears in sequences

• a(n)=A128056(n)/A128055(n).at n=17A128053
• a(n)=A128056(n)/A128055(n).at n=18A128053
• Values of n such that L(9) and N(9) 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=35A226929