459759

Appears in sequences

• For the Collatz (3x+1) iterations starting with the odd numbers k, a(n) is the smallest k such that the trajectory contains at least n successive odd numbers == 3 (mod 4).at n=18A213215
• Least number k having Collatz (3x+1) sequence with exactly n pairs of odd and even numbers in a row.at n=18A222598
• Number of (n+4) X 8 0..1 matrices with each 5 X 5 subblock idempotent.at n=25A224686
• a(n) is the smallest k such that the Collatz sequence for k includes a record number of consecutive tripling steps.at n=17A350370