199986
domain: N
Appears in sequences
- Numbers k equal to the number of 1's in the decimal digits of all numbers <= k.at n=7A014778
- a(n) = 2*(10^n - 7).at n=4A175237
- 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=7A216400
- Base-ten n containing a digit making its n-th appearance in the list of consecutive positive integers.at n=6A339752