66349

Appears in sequences

• a(n) = smallest non-palindromic k such that the base-4 Reverse and Add! trajectory of k is palindrome-free and joins the trajectory of A091675(n).at n=3A091677
• Smallest positive multiple of n whose base 9 representation contains only 0's and 1's.at n=42A244960
• Number of subsets of {1,2,...,n} such that no two elements differ by 1 or 6.at n=26A385870