970522623

Appears in sequences

• 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=47A333560
• a(n) = Sum_{j = 0..2*n} binomial(n+j-1,j)*2^j.at n=7A333561