3080193

Appears in sequences

• Expansion of 1/((1-x)*(1-2*x)^4).at n=12A027608
• Square array read by antidiagonals: T(n,k) = Sum_{j = 0..n*k} binomial(n+j-1,j)*2^j; n,k >= 0.at n=31A333560
• a(n) = Sum_{j = 0..3*n} binomial(n+j-1,j)*2^j.at n=4A333562