Ok, if you wanted some information for Keno (10/20/80).
Take 16 numbers, use a 2 out of 2 option to separate the 16 numbers into eight tickets with ten numbers each.
80 numbers divided into 16, you will have 16 groups of 5 numbers. Choose one number from each of the sixteen groups to make the combinations.
01,02,03,04,05 ( take one number from this group)
06,07,08,09,10 ( take another number)
11,12,13,14,15 ( choose your favorite number)
16,17,18,19,20 ( again take one number from this group)
21,22,23,24,25 ( get other number)
26,27,28,29,30 ( pick any number from this group)
31,32,33,34,35 ( lucky number from this group)
36,37,38,39,40 ( any significant number)
41,42,43,44,45 (this is getting old)
46,47,48,49,50 ( fifty!)
51,52,53,54,55 (guess a number)
56,57,58,59,60 ( your party combination is almost done)
61,62,63,64,65 (almost finished!)
66,67,68,69,70 ( if you wanted to play 10/20/70 you could end just here!!! )
71,72,73,74,75 ( you asked for 10/20/80, there is more two groups. This , and the last one!)
76,77,78,79,80 ( Last number to choose from. Now you should have at least sixteen numbers to make your combinations to play).