Help with increasing bets over 100 spins

[kaos_inc]

Can anyone help me with how to increase my bets every 10 spins to a maxium of 100 spins? I have the first 50 spins worked out.

Spin 1-10 $0.10
Spin 11-20 $0.20
Spin 21-30 $0.50
Spin 31-40 $1.00
Spin 41-50 $2.50

Anyone have any ideas of how to increase bets on spins 51 to 100 for the next 5 increments? I really don't want the top end of 100 spins to be a large amount if possible.

I'm split betting so the return is 18/1. I'm open to dividing the 100 (or close to it) spins into different increments (EG: every 13 spins) as long as there is a profit when the number hits.