The discovered sequence of 126 19-digit numbers (all of them never reported before) that turn into a palindrom after 261 steps is officially included into OEIS as the sequence number A281508. The list of these numbers is also published.

This sequence ends with the number 1999291987030606810 – “The Largest Known Most Delayed Palindrome”. The trajectory of this number to a 119-digit palindrome is also published.