68444641

Appears in sequences

• Numbers k such that k and k^2 use only the digits 1, 3, 4, 6 and 8.at n=44A137026
• Numbers k such that k and k^2 use only the digits 1, 4, 5, 6 and 8.at n=20A137047
• Numbers k such that k and k^2 use only the digits 1, 4, 6, 7 and 8.at n=38A137052
• Numbers k such that k and k^2 use only the digits 1, 4, 6 and 8.at n=5A137054