1197801

Appears in sequences

• n 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=35A067287
• Numbers n such that the set S(n) = {k: k + reverse(k) = n} is not empty, at least one element of S(n) has the same number of digits as n and at least one element of S(n) has one digit less than n has.at n=8A088171
• a(n) = binomial(5n+6, 4)/5 for n >= 0.at n=21A238471