How to increase a number under cursor?

[Wang Yin]

Hi,

I want to record a macro to type flexible numbered lists.
for example:

continuous:
1. 
2.
3.
4.
...

odd:
1.
3.
5.
7.
...


hex:

0x9
0xA
0xB

octal:
007
010
011

The only problem I meet is how to increase the number under
the cursor?