44693587domain: NAppears in sequencesTriangle of (Gaussian) q-binomial coefficients for q=-19.at n=29A015144a(n) = n^6 - n^5 + n^4 - n^3 + n^2 - n + 1.at n=19A060888Semiprimes of the form m^6 - m^5 + m^4 - m^3 + m^2 - m + 1.at n=6A245482