622575domain: NAppears in sequencesRow sums of triangle A134310.at n=16A134311Number of compositions of 6*n-1 into parts 5 and 6.at n=19A373961Expansion of 1 / ((1-x)^5 - x^6).at n=19A390045a(n) = Sum_{k=0..floor(3*n/5)} binomial(k+1,3*n-5*k).at n=38A391843