1599990

Appears in sequences

• Numbers k equal to the number of 1's in the decimal digits of all numbers <= k.at n=23A014778
• a(n) = n*(n^4-1)/2.at n=18A027484
• 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=23A216400
• Base-ten n containing a digit making its n-th appearance in the list of consecutive positive integers.at n=22A339752