Number word sequences

By iftttbot

I was idly musing about number sequences, and the Lychrel algorithm. If you don’t know about this, there’s a good Numberphile video on it: basically, take any number, reverse it, add the two, and if you get a palindrome stop, and if you don’t, keep doing it. from https://www.kryogenix.org/days/2020/01/19/number-word-sequences/