180003

Appears in sequences

• Triangle T(n,m) read by rows: Sum_{k=1..m} binomial(2*n, n+k)*d(k), m<=n, with d(k)=A000005(k).at n=44A351145
• a(n) = Sum_{k=1..n} binomial(2*n,n+k)*A000005(k).at n=8A351146