229911617056domain: NAppears in sequencesa(n) = binomial coefficient C(2n, n-7).at n=15A004313Binomial coefficient C(44,n).at n=15A010960Binomial coefficient C(n,29).at n=15A010982Staircase on Pascal's triangle.at n=29A081204Number of compositions (= ordered integer partitions) of n into 2n parts.at n=15A165817