I'm not sure why it feels more natural to be able to remember 132 than 142 but it does. 17 is the first non-negative integer I can't do from memory and of course the first you can't do from memory is easier than others to calculate.
It doesn't to me. I learned 1-10 times tables very early, and I think picked up 11 and 12 squared then, though the eleven and twelve table never stuck, (though I remember some now.)
A little later I learnt the squares up to 20 iirc. 132 and 142 I remembered because they're anagrams. 152 I remember because 5s tend to become 2s and 5s and I just remember that value. 162 for obvious reasons. And all those come up occasionally.
After that, I'm the same as you, 17+ I dont' remember, and probably never will unless I make a specific effort to do so.
I don't know why I picked 14 rather than 13 as the question. It just felt more elegant somehow. Also, that people who know 122 might easily have seen 132 out of the corner of their eye, 142 more for its own sake :)
![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
no subject
Date: 2006-04-27 12:40 pm (UTC)I'm not sure why it feels more natural to be able to remember 13^2 than 14^2 but it does.
Date: 2006-04-27 12:55 pm (UTC)A little later I learnt the squares up to 20 iirc. 132 and 142 I remembered because they're anagrams. 152 I remember because 5s tend to become 2s and 5s and I just remember that value. 162 for obvious reasons. And all those come up occasionally.
After that, I'm the same as you, 17+ I dont' remember, and probably never will unless I make a specific effort to do so.
I don't know why I picked 14 rather than 13 as the question. It just felt more elegant somehow. Also, that people who know 122 might easily have seen 132 out of the corner of their eye, 142 more for its own sake :)
Re: I'm not sure why it feels more natural to be able to remember 13^2 than 14^2 but it does.
Date: 2006-04-27 01:14 pm (UTC)Re: I'm not sure why it feels more natural to be able to remember 13^2 than 14^2 but it does.
Date: 2006-04-27 04:58 pm (UTC)I wonder if 13 *does* come up more. I have the feeling I've used both about the same amount occasionally, but I'm not sure.