1161665domain: NAppears in sequencesSort then Add, a(1)=5.at n=22A033894Sort then Add, a(1)=31.at n=19A033905Sort then Add, a(1)=20.at n=20A033906Expansion of (1-x-sqrt(1-2*x-3*x^2-4*x^3))/(2*x*(1+x)).at n=16A071359