499999984

Appears in sequences

• Positive integers n for which n = f(n), where f(n) is the total number of 4's required when writing out all numbers between 0 and n.at n=0A101641
• a(n) is the smallest number x > 1 such that n appears as a substring of the decimal representations of the numbers [0..x] exactly x times.at n=3A163500
• a(n) is the smallest number x such that the decimal representation of n appears as a substring of the decimal representations of the numbers [1...x] >= x times.at n=4A164935