143223

Appears in sequences

• Base 6 digits are, in order, the first n terms of the periodic sequence with initial period 3,0,2.at n=6A037655
• Take a squarefree semiprime and take the difference of its prime factors. If it is a squarefree semiprime repeat the process. Sequence lists the squarefree semiprimes that generate other squarefree semiprimes only in the first k steps of this process. Case k = 6.at n=14A296813
• Lesser of 2 successive squarefree semiprimes (k, k+6) sandwiching 5 consecutive nonsquarefree numbers.at n=14A368778