90665domain: NAppears in sequencesNumerators of continued fraction convergents to sqrt(765).at n=6A042474Eigentriangle of Catalan triangle A033184.at n=60A172380Triangle whose inverse has production matrix with general term (-1)^(n-k+1)*C(k+1, n-k+1).at n=49A172381a(n) = Sum_{k=1..n} binomial(floor(n/k)+3,4).at n=35A365409