734561domain: NAppears in sequencesQuintisection of 1/(1-x^5-x^6).at n=24A099132Binomial transform of the expansion of 1/(1-x^5-x^6).at n=20A107025a(n) = Sum_{k=0..floor(3*n/5)} binomial(k,3*n-5*k).at n=40A392271