220779domain: NAppears in sequencesNumber of partitions of 5n such that cn(1,5) = cn(4,5) < cn(0,5) <= cn(2,5) = cn(3,5).at n=17A036890Expansion of x^2*(10-5*x+x^2)/((1-x)^4*(1-x^2)).at n=35A331429