289982

Appears in sequences

• Palindromes of the form k*(k + 1).at n=4A028337
• Nontrivial palindromic denominators in Leibniz's harmonic triangle.at n=7A056238
• n sets a new record for the number of integers k such that n = k + reverse(k).at n=40A067035
• a(n) is the least number that can be represented in exactly n ways as the sum of a prime and its digit reversal.at n=27A344871
• a(n) is the least number that is the sum of an emirp and its reversal in exactly n ways.at n=6A345410
• Oblong numbers k for which phi(k) is also an oblong number.at n=15A359847