palindromes are numbers that are the same read backwards as they are read forwardlike 36863 or 1881I dunno what a triangular number is though
after you get rid of all the palindromes you can just fill in the rest easily, without even needing to know what a "triangular number" is
The first one on the bottom would be 66 then, lol.I am assuming this is like, Algebra 2.
66 is multiple of 11 triangular number
written down, hurrah. Thanks a lot.
nvm thats wrong re-check my post
Isn't a triangular number like bowling pins?