4028036domain: NAppears in sequencesNumber of compositions of 6*n-4 into parts 5 and 6.at n=22A373964Expansion of 1 / ((1-x)^5 - x^6).at n=22A390045a(n) = Sum_{k=0..floor(3*n/5)} binomial(k+1,3*n-5*k).at n=43A391843