Creating Number Sets

Hi guys

I just wonder if anyone has experience creating number sets?
(e.g. << 1 2 3 4 5 … 100 >> )

when goes further << 10 11 12 13 14 … 100 >>

I been trying to work this out for days now and I cant seem to find tutorial on this or I am searching for the wrong keyword? :frowning:

Any help would be appreciated.

Thanks.
FRG10