1001130

Appears in sequences

• Positive numbers k such that k and 3*k are anagrams in base 4 (written in base 4).at n=25A023060
• Table read by row, where T(n,k), n>0 and k>0, represents the smallest n-digit number that is the product of k distinct primes and is sandwiched between semiprime numbers, or -1 if no such number exists.at n=30A379167