Question 286570
Sorry but you have to put an upper limit on these integers since the integers never end.
1,2,3,4,5,7,8,10,11,13,16,17,19,etc
multiples of 6,9,and 20 are possible plus combos of 9 and 6 and 20
6*x+9*y+20*z are all possible where x, y, or z can equal zero