88569

Appears in sequences

• Numbers k such that k divides the (left) concatenation of all numbers <= k written in base 14 (most significant digit on right and removing all least significant zeros before concatenation).at n=12A029531
• a(n) = 9*(3^n - 1)/2.at n=9A168569
• a(n) is the unique nonnegative integer whose binary expansion is the parity sequence of the Collatz orbit of n, interpreted through a particular conjugacy (see Comments).at n=24A389685