>Complete this serie:
>
>1
>11
>21
>1211
>111221
>?
The next "number" is 312211.
How about this other series:
10
11
12
13
14
15
16
17
20
22
24
???
100
121
10000
BTW, I understand the word "Series" is both singular and plural.
Hilmar.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)