84213

Appears in sequences

• "BGK" (reversible, element, unlabeled) transform of 1,1,1,1,...at n=35A032058
• Numbers which form a prime by appending a 3-digit odd number and form no primes by appending any 1- or 2-digit odd number not beginning with 0.at n=17A091089
• Primefree centuries (i.e., numbers k such that no prime exists between 100*k and 100*k+99).at n=22A181098
• Numbers that are the sum of five fifth powers in two or more ways.at n=9A342685
• Numbers that are the sum of five fifth powers in exactly two ways.at n=9A342686
• Numbers which form a prime by appending a 3-digit number and form no primes by appending 1 digit or 2 digits.at n=10A365813