200004

Appears in sequences

• Numbers k such that the number of primes between k and 2k (inclusive) is equal to the number of primes between k and reverse(k) (inclusive).at n=45A074814
• Multiples of 3 in which there is no common digit in successive terms.at n=36A083491
• Multiples of 7 in which there is no common digit in successive terms.at n=32A083495
• Fixed points of permutations A118763, A118764, A118765 and A118766.at n=14A118767