-2188

Appears in sequences

• Matrix inverse of triangle A099602, read by rows, where row n of A099602 equals the inverse binomial transform of column n of the triangle of trinomial coefficients (A027907).at n=60A104495
• Expansion of (1+x+sqrt(1-2x-3x^2))/2.at n=12A168051
• Expansion of (1 - x + sqrt(1 - 2*x - 3*x^2))/2 in powers of x.at n=12A292440
• G.f.: Product_{k>=1} (1-prime(k)*x^prime(k)).at n=36A298159
• Square array T(n,k), n >= 1, k >= 0, read by antidiagonals downwards, where T(n,k) = Sum_{d|n} mu(d)*mu(n/d)*d^k.at n=47A347227