68346

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=2A091677
• Records in A002945 (continued fraction expansion of cube root of 2).at n=10A268515
• a(n) = Sum_{k=1..n} sigma(k)*sigma(2*k), where sigma(n) = A000203(n) is the sum of the divisors of n.at n=29A347108