163527domain: NAppears in sequencesExpansion of -x*(x^2+1)*(x+1)^2/((2*x^3+x^2-1)*(x^4+1)).at n=29A107852a(n) = (n+1)*(n+2)*(n+3)*(13*n^3 + 69*n^2 + 113*n + 60)/360.at n=11A108649