-2391domain: ZAppears in sequencesExpansion of Product_{m>=1} ((1+q^(2*m-1))/(1+q^(2*m)))^6.at n=16A029843Values of n such that L(19) and N(19) 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=15A227522