You did. I cheated to get the rest. Just cut and pasted from yours. www.ddhw.com
They are periodical and you found the period before I did.
As for the 思路, you just start with a digit less than 5 and start to multiply by 2 and to see when it repeats itself. You will get one of the above numbers.
It looks like they and their repeats are the only such numbers. A repeat is something like
哈哈哈哈 O(∩_∩)O哈哈~ 好久不来了，不小心看了一眼自己主页，发现自动关联了自己以往发过的帖，点进这个看了一眼，笑个半死。。。敢情我当初还发过这么搞笑的东西啊，我自己完全不记得了 
雷达卡
发表于 2005-3-15 18:51:42