2056321domain: NAppears in sequencesTriangle read by rows: T(n, k) = 2^n*(q^k - 1)*(q^(n - k) - 1) + 1, where q = 4.at n=31A176795Triangle read by rows: T(n, k) = 2^n*(q^k - 1)*(q^(n - k) - 1) + 1, where q = 4.at n=32A176795a(n) = n! * Sum_{d|n} binomial(n-1,d-1) / d!.at n=8A329966