44241261

Appears in sequences

• a(n) = Sum_{k=0..n} binomial(n,k)*binomial(2*k,k).at n=12A026375
• a(n) = T(n,[ n/2 ]), where T is the array in A026374.at n=23A026380
• Self-convolution of array T given by A026374.at n=12A026946