124264domain: NAppears in sequencesNumber of quasi-triominoes in an n X n bounding box.at n=29A094170Triangle read by rows: T(n,k) (0<=k<=floor(n/2)) is the number of Delannoy paths of length n, having k ED's.at n=21A110221Apply Lenormand's transformation k -> A318921(k) to the Fibonacci numbers.at n=50A318922