read AppsWZ: #Recurrence operator annihilating a_r(n):=The number of ordered partitions #(L_1, ..., L_r) where each L_i is an integer partition and the sum of all the parts is #n using as parts only {1,2,3,4}: print(` The Recurrence operator annihilating a_r(n):=The number of ways `): print(` of making change of n cents only using pennies, nickels, dimes, and quarters`): print(`where the person has r pockets the money can come from, is: `): lu:=TeamEffortMoneyChanging({1,5,10,25},n,N,r): lu:=taylor(lu,N=0,degree(lu,N)+1): print(lu): print(`This took`, time(), `seconds `): quit: