1599989

Appears in sequences

• Numbers k equal to the number of 1's in the decimal digits of all numbers <= k.at n=22A014778
• Numbers k such that the number of times digit 'm' used for writing the decimal representation between 1 to k is equal to k for at least one value of m in the range m = 1 to 9.at n=22A216400
• Base-ten n containing a digit making its n-th appearance in the list of consecutive positive integers.at n=21A339752
• Lexicographically earliest sequence of distinct positive terms such that the rightmost digit of a(n) concatenated with the leftmost digit of a(n+1) form an integer that is the sum of the digits of a(n) and a(n+1).at n=30A347353