47620

Appears in sequences

• Numbers k such that k and k^2 have the same set of digits.at n=20A029793
• Number of irregular primes less than 3^n.at n=12A105458
• Numbers k such that k and k^2 use only the digits 0, 2, 4, 6 and 7.at n=18A136903
• Number of (w,x,y,z) with all terms in {1,...,n} and min{|w-x|,|w-y|}=min{|x-y|,|x-z|}.at n=30A212579