51852

Appears in sequences

• a(n) = Sum_{k=0..n} binomial(n,k^2).at n=18A003099
• Triangle read by rows: T(n,k) is the number of peakless Motzkin paths of length n having k UHD's; here U=(1,1), H=(1,0), and D=(1,-1).at n=59A190172