295482domain: NAppears in sequencesn sets a new record for the number of integers k such that k is not of the form m + reverse(m) for any m and n occurs in the 'Reverse and Add' trajectory of k (cf. A067284).at n=25A067287Pentagonal numbers (A000326) that are the product of 2 palindromes greater than 1.at n=31A115745