467180domain: NAppears in sequencesValues of C(n,3) which can be written as C(x,3) + C(y,3).at n=8A034404a(n) = floor(n^(3/2))*floor(1 + n^(3/2))*floor(2 + n^(3/2))/6.at n=26A185592a(n) = (p+1)*(p+2)*(p+3)/6 where p is the n-th prime.at n=33A271512a(n) = (5*n + 5)*(5*n + 6)*(5*n + 7)/6.at n=27A300523