424710domain: NAppears in sequencesSum of squared terms in rows of triangle A152547: a(n) = Sum_{k=0..C(n,[n/2])-1} A152547(n,k)^2.at n=16A152548A transform of the large Schroeder numbers, A006318.at n=8A166694a(n) = the least k for which A255326(k) = n; positions of records in A255326.at n=15A255409