100491

Appears in sequences

• Numbers k such that k and k^2 use only the digits 0, 1, 4, 8 and 9.at n=55A136867
• Numbers n such that n and n+-1 have 4 distinct prime factors.at n=34A168628
• Numbers k such that k, k^2-1 and k^2+1 are all fine, where a number m is fine if its prime factors are all less than m^(1/3).at n=25A345896