175195

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 67 ones.at n=16A031835
• Start from the singleton set S = {n}, and unless 1 is already a member of S, generate on each iteration a new set where each odd number k is replaced by 3k+1, and each even number k is replaced by 3k+1 and k/2. a(n) is the total size of the set from the singleton through after the first iteration which has produced 1 as a member, inclusive.at n=46A291213