-6392903

Appears in sequences

• Triangle T(n, k, q) = e(n, k, q), where e(n, k, q) = ((1 - (-q)^(n+k-1))/(1 + q))*e(n-1, k, q) + (-q)^(n+k-2)*e(n-1, k-1, q), e(n, 0, q) = e(n, n, q) = 1, and q = 2, read by rows.at n=18A156539