208336domain: NAppears in sequencesNumber of meaningful differential operations of the n-th order on the space R^(2+n).at n=14A127935a(n) = Sum_{k=0..n} binomial(k, 8*(n-k)).at n=22A306752a(n) = Sum_{k=0..floor(n/2)} binomial(k,4*n-8*k).at n=44A390220a(n) = Sum_{k=0..floor(3*n/8)} binomial(k+1,3*n-8*k).at n=56A392674