152500domain: NAppears in sequencesa(n) = 10*n^3 - 6*n^2.at n=25A006592Generalized Catalan numbers 5*x*A(x)^2 -A(x) +1 -4*x=0.at n=6A068767Number of basis partitions of n+100 with Durfee square size 10.at n=33A069253Expansion of 5*(1-6*x+x^2)/(1-10*x+5*x^2).at n=5A189317