2563707domain: NAppears in sequencesExpansion of g.f. (1-x)(x^2-5x+3)/(x^4-6x^3+13x^2-6x+1).at n=12A105660Numbers such that floor(a(n)^2 / 6) is a square.at n=21A204518Numerators of the other-side convergents to sqrt(6).at n=12A259595