126915

Appears in sequences

• Expansion of (1-x)/(1+2*x-x^2+2*x^3).at n=12A078059
• Triangle, T(n, k, q) = e(n, k, q), where e(n, k, q) = ((1 - (-q)^k)/(1+q))*e(n-1, k, q) + (-q)^(k-1)*e(n-1, k-1, q), e(n, 0, q) = e(n, n, q) = 1, and q = 2, read by rows.at n=32A156535