78431domain: NAppears in sequencesExpansion of g.f. 1/((1-2x)(1-3x)(1-9x)(1-11x)).at n=4A025953Numbers n such that sopfr(n) - (floor(sqrt(n))*bigomega(n)) = floor(sqrt(n)).at n=30A180877Number of n-step three-sided prudent self-avoiding walks ending at the northwest corner of their box.at n=13A191828