38491

Appears in sequences

• Composite numbers not divisible by 2 or 3 which in base 3 contain their largest proper factor as a substring.at n=33A063132
• Composite numbers which in base 9 contain their largest proper factor as a substring.at n=7A063172
• Duplicate of A063172.at n=7A063879
• Number of (n+5)X9 0..1 matrices with each 6X6 subblock idempotent.at n=13A224573