As we announced before, on April 21st, 2017 our “1003 Palindrome Generator”, using proprietary theoretical algorithm, generated 1620000 (one million six hundred twenty thousands) 19-digit delayed palindromes with 259-step delay before achieving the 119-digit palindrome, each of which was independently tested and confirmed its properties.

On May 12, 2017 we officially added all 1620000 (one million six hundred twenty thousands) 19-digit 259-step delayed palindromes to our А281390 sequence in The Online Encyclopedia of Integer Sequences (OEIS). The extended sequence starts with 1000000079994144385 and ends with 6834414999700000000.

All discovered delayed palindromes are currently available for download from OEIS as well as from our data repository.

The published sequence is complete – there is a theoretical confirmation for its size, composition and completeness.