解:
1只老鼠經過兩個月後能生12只小老鼠,再過兩個月就是13只老鼠可以繁殖小老鼠了,....十個月***可以繁殖10÷2=5次
1+12+(12+1)×12+[1+12+(12+1)×12]×12+{1+12+(12+1)×12+[1+12+(12+1)×12]×12}×12
=1+12+13×12+169×12+2197×12+28561×12
=1+(1+13+169+2197+28561)×12
=1+30941×12
=1+371292
=371293