-10439domain: ZAppears in sequencesExpansion of 1/(1+x^2-2*x^3).at n=28A077912Expansion of 1/(1+x^2+2*x^3).at n=28A077963Values of n such that L(18) and N(18) 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=23A227521