-11219domain: ZAppears in sequencesValues of n such that L(10) and N(10) 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=41A227448Coefficients of the series reversion of the series Sum(x^k for k in A008578).at n=12A245240