244801domain: NAppears in sequencesTriangle read by rows: T(n, k) = 2^n*(q^k - 1)*(q^(n - k) - 1) + 1, where q = 4.at n=23A176795Triangle read by rows: T(n, k) = 2^n*(q^k - 1)*(q^(n - k) - 1) + 1, where q = 4.at n=25A176795Expansion of e.g.f. exp(x/(1 - 3*x)^3).at n=5A380641